Report / Paper / Summary
9
October
2026

The Law Enforcement Directive – data protection challenges in practice

Criminal investigations rely on large amounts of personal data processed by law enforcement authorities. This sensitive information must be handled in line with EU data protection rules and people’s rights. The Law Enforcement Directive sets out rules for how authorities can process data in a way that safeguards fundamental rights and freedoms. This report looks at how data protection rules are applied in practice in all EU Member States. It highlights challenges concerning understanding and compliance, the role and resources of data protection officers, and effective supervision. The results contribute to an EU-level assessment of how the directive is applied in practice, pointing to areas for future improvement.

TABLE OF CONTENT

To further assess the practices and challenges involved in implementing the LED framework, FRA conducted interviews with the DPAs of all 27 Member States, which are referred to in the LED as ‘supervisory authorities’. The interviews were conducted with officials in the national DPA who were in charge of investigations and complaints related to the LED. While all DPAs responded positively to FRA’s request to conduct interviews, not all of the officials interviewed were dedicated experts on the LED. In eight Member States, FRA interviewed representatives of DPAs who indicated that they were not experts on questions related to the national provisions transposing the LED, but that they had worked on related cases or questions. In one case, the person interviewed was working in the international department, and not on LED-related cases.

Article 41 of the LED requires Member States to make sure that ‘one or more independent public authorities’ are entrusted with the monitoring of the application of the LED’s requirements. Their tasks are listed in Article 46 (see box ‘Article 46: tasks’) and their powers are listed in Article 47 (see Section 3.2). Article 45 of the LED excludes from this supervision ‘processing operations of courts when acting in their judicial capacity’ and allows Member States to decide on whether to also exclude ‘processing operations of other independent judicial authorities when acting in their judicial capacity’. Following the transposition of the LED into national laws, nine Member States decided to exclude ‘other judicial authorities’ from the supervisory scope of their DPA [21] See Sajfert, J., ‘National implementations’, in: Kosta, E. and Boehm, F. (eds), The EU Law Enforcement Directive (LED): A commentary, Oxford University Press, Oxford, 2024, pp. 39–48.
. This exception seems to have created some confusion among respondents, as some experts in prosecutors’ offices who were interviewed by FRA believed that this exception exempted them not only from the supervision of their DPA, but also from the whole scope of the LED – or at least that the national law transposing the LED is subordinate to the national criminal procedural code, which is their main legal reference. This is one of the reasons why those who proved the most difficult to recruit for the interviews were employees of prosecutors’ offices (see Annex 1).

In a majority of Member States, one supervisory institution is tasked with the supervision of both the GDPR and the LED (in Belgium, the oversight of data processing under the LED is mandated to a separate authority; in Spain, a separate authority is tasked with the supervision of data processing by judicial authorities; and, in Sweden, the supervision of the police is the responsibility of both the national DPA and another authority). In these Member States, the FRA findings highlight that the Commission’s observation that ‘the overall increase in the data protection supervisory authorities’ staff in recent years does not seem to concern LED-related tasks’ [22] Communication from the Commission to the European Parliament and the Council – First report on application and functioning of the Data Protection Law Enforcement Directive (EU) 2016/680 (‘LED’), COM(2022) 364 final of 25 July 2022.
is still valid: GDPR-related complaints and investigations represent a very large part of the authority’s work and, therefore, resources are largely focused on these. Several interviewees refer to this as a general issue of chronic understaffing. This situation was indeed already highlighted by FRA in its 2023 report related to the implementation of the GDPR [23] FRA, GDPR in Practice – Experiences of data protection authorities, Publications Office of the European Union, Luxembourg, 2024.
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Resources allocated to LED-related issues are generally deemed to be sufficient to respond to complaints (i.e. for the most pressing issues). However, a majority of respondents highlighted that their work would benefit from additional resources, notably in order to:

  • conduct regular investigations on their own initiative;
  • recruit IT specialists to complement their team;
  • prepare for future EU regulations that may fall under their supervision, such as the AI Act, the Regulation Establishing the Entry/Exit System [24] Regulation (EU) 2017/2226 of the European Parliament and of the Council of 30 November 2017 establishing an Entry/Exit System (EES) to register entry and exit data and refusal of entry data of third-country nationals crossing the external borders of the Member States and determining the conditions for access to the EES for law enforcement purposes, and amending the Convention implementing the Schengen Agreement and Regulations (EC) No 767/2008 and (EU) No 1077/2011 (OJ L 327, 9.12.2017, p. 20, ELI: http://data.europa.eu/eli/reg/2017/2226/oj).
    or the Screening Regulation [25] Regulation (EU) 2024/1356 of the European Parliament and of the Council of 14 May 2024 introducing the screening of third-country nationals at the external borders and amending Regulations (EC) No 767/2008, (EU) 2017/2226, (EU) 2018/1240 and (EU) 2019/817 (OJ L, 2024/1356, 22.5.2024, ELI: http://data.europa.eu/eli/reg/2024/1356/oj).
    .

Many respondents from DPAs highlighted that there are several areas in which the LED applies in parallel with sector-specific EU regulations, for example in the context of large-scale EU information systems (e.g. the SIS Regulation [26] Regulation (EU) 2018/1862 of the European Parliament and of the Council of 28 November 2018 on the establishment, operation and use of the Schengen information system (SIS) in the field of police cooperation and judicial cooperation in criminal matters, amending and repealing Council Decision 2007/533/JHA, and repealing Regulation (EC) No 1986/2006 of the European Parliament and of the Council and Commission Decision 2010/261/EU (OJ L 312, 7.12.2018, p. 56, ELI: http://data.europa.eu/eli/reg/2018/1862/oj).
, the Regulation Establishing the Entry/Exit System, the Visa Information System Regulation [27] Regulation (EC) No 767/2008 of the European Parliament and of the Council of 9 July 2008 concerning the visa information system (VIS) and the exchange of data between Member States on short-stay visas (VIS Regulation) (OJ L 218, 13.8.2008, p. 60, ELI: http://data.europa.eu/eli/reg/2008/767/oj).
and the Regulation Establishing an Interoperability Framework [28] Regulation (EU) 2019/818 of the European Parliament and of the Council of 20 May 2019 on establishing a framework for interoperability between EU information systems in the field of police and judicial cooperation, asylum and migration and amending Regulations (EU) 2018/1726, (EU) 2018/1862 and (EU) 2019/816 (OJ L 135, 22.5.2019, p. 85, ELI: http://data.europa.eu/eli/reg/2019/818/oj).
. This adds further complexity and increases the workload of supervisory authorities. Although the volume of LED-related complaints to the supervisory authorities may not be high [29] Communication from the Commission to the European Parliament and the Council – First report on application and functioning of the Data Protection Law Enforcement Directive (EU) 2016/680 (‘LED’), COM(2022) 364 final of 25 July 2022, Section 3.4.1 (stating that individual complaints are ‘far fewer in number than for the GDPR’).
, the range of tasks under Article 46 of the LED is broad. Beyond handling complaints, supervisory authorities also have responsibilities related to monitoring the application of the national provisions transposing the LED, to raising awareness and providing advice to public institutions (including on legislative measures), to cooperation and mutual assistance with other supervisory authorities, and to prior consultation. Therefore, more thorough and frequent monitoring of law enforcement data processing is needed to ensure effective supervision of the LED. FRA’s findings clearly show that the overall scope and importance of the tasks performed by competent authorities that may have LED-related implications clearly indicate a need for increased (and specialised) human resources for DPAs across Member States. Increasing resources would support them in supervising these authorities more frequently and more effectively, including by extending their tasks beyond addressing complaints to conducting regular ad hoc inspections.

Despite a significant overall increase in the DPA’s office’s resources, there is a notable shortage of personnel for LED-related tasks, particularly given the new responsibilities of supervising EU information systems such as SIS, VIS [visa information system], EES [entry/exit system], and ETIAS [European travel information and authorisation system], which require substantial resources … LED-related tasks are under-resourced, necessitating strict prioritisation. Inspections, an essential aspect of the work, have been particularly impacted. The number of inspections conducted has decreased significantly, negatively affecting operations’ efficiency and effectiveness. With sufficient staff, it would be possible to conduct more inspections, including more extensive monitoring of the information systems used by security authorities.

An officer at a DPA

Most interviewees in these institutions, from 20 Member States, declared that the dual enforcement of both the GDPR and the LED by one institution was a strength rather than a limitation, as it provides comprehensive and nuanced data protection oversight and it enables easier identification of which legal framework applies to a specific case. Some mentioned the lack of law enforcement expertise as a potential limitation. Among the DPAs interviewed, those with a dedicated sector or unit for LED-related cases declared that this enabled them to devote focused time and resources to such cases.

In one Member State, oversight of police processing is entrusted to a dedicated authority specialised in law enforcement data protection. According to one interviewee, this set-up is seen as a strength because it concentrates expertise and supports a strong understanding of policing practices and systems. At the same time, the DPA noted that this does not remove resource constraints and that investigative work remains largely reactive due to limited capacity.

Echoing FRA’s previous conclusions on the implementation of the GDPR, this research exposes a general under-resourcing of DPAs for LED-specific supervision, despite their broad mandate under Article 46. While most Member States task a single authority with overseeing compliance with both the GDPR and the LED, prioritisation skews heavily towards the GDPR, a trend that is exacerbated by chronic understaffing. Although complaint-driven work is manageable, proactive enforcement (e.g. unannounced inspections and thematic reviews) suffers, with DPAs lacking the capacity to regularly monitor law enforcement processing. Dedicated LED units, where they exist, fare better, demonstrating that LED-designated resources enable more effective oversight. Robust oversight can foster not only better LED implementation, but also a culture of awareness and understanding of data protection principles within competent authorities.

As described above, DPAs are tasked with investigating competent authorities, either on their own initiative or following a complaint. To do so, the LED clarifies that Member States should provide them with supervisory powers, which should include at least ‘the power to obtain from the controller and the processor access to all personal data that are being processed and to all information necessary for the performance of its tasks’.

When asked to describe whether they were satisfied with investigatory powers as granted to them by law, most of the DPA staff interviewed by FRA considered these powers to be sufficient. Several respondents acknowledged, however, that this statement was based on a low number of investigations conducted: given resource shortages, most investigations are reactive (based on a complaint or on notifications of breaches).

Some respondents from DPAs highlighted that they consider it helpful to be involved at a very early stage when a data processing operation is being developed. Indeed, most of the DPA staff interviewed confirmed that they were consulted on issues or asked questions about procedures that were outside the scope of what competent authorities are required to do. Examples include the use of specific technologies, such as AI, CCTV, facial recognition, drones or biometric data, and other topics, such as issues related to seized documents, the superfluous collection of data or disclosure of third-person data during disciplinary proceedings. A few DPA employees flagged some negative effects that these unofficial requests may have, namely that DPAs cannot provide data controllers with legal advice and are already stretched under workloads stemming from official requests, complaints or investigations. A few other interviewees indeed highlighted that it may be difficult for them to assess where to draw a line between requirements to provide guidance.

Most DPA experts stated that they had not investigated any cases of non-compliance with LED principles that involved modern technologies, and all but six of them stated that they did not have sufficient IT expertise in-house (however, a few of them believed that, as the use of modern technologies is not developed within their law enforcement, this is not, currently, an issue). One of the three that stated that their IT expertise was adequate emphasised the importance of conducting DPIAs and of cooperating with competent authorities when these authorities plan to use specific technologies. Another one identified as a challenge the lack of guidance on the criteria that should be used to evaluate new technologies. However, no interviewees referred to the fundamental rights impact assessment that was introduced by the AI Act. Some solutions identified by interviewees included outsourcing, recruiting (one interviewee stated that they are ‘actively recruiting ICT [information and communications technology] technologists’) and developing in-house labs or an in-house workforce to develop their understanding.

Many interviewees referred to (some well-known) cases involving facial recognition technologies, public surveillance or the use of biometric data for identification purposes. No specific difficulties were identified, however, in the course of the discussion; some interviewees stated that they do anticipate investigations becoming more challenging because of the volume of data becoming greater. One interviewee, however, considered that their authority had not identified data protection challenges in the use of new technologies by law enforcement because they lack the human resources and the expertise to assess such technologies. In this context, several interviewees from DPAs, at the time of the fieldwork, were aware that their authority would be granted additional powers with respect to the supervision of fundamental rights protection from AI through Article 77 of the AI Act. They confirmed that they are in the process of preparing for this new role, mainly through training, recruitment and restructuring.

Almost all interviewees indicated that they had not faced any issues in accessing documents, even when these were classified, as, in most cases, interviewees declared that DPA staff involved in the investigations have security clearance. In Member States where the DPA has no or very limited competence to investigate or access classified information, this was identified as a challenging factor to effectively investigate competent authorities.

Interviewees did report that, in some cases, police authorities have been reluctant to hand over documents, and this stems, in the opinion of one interview, ‘from the abstract language of the LED, which leaves room for interpretation regarding what constitutes “necessary” data, especially since “personal data” is oftentimes spread over a variety of documents’. There was some disagreement between the supervisory and competent authorities about what constitute necessary data for the purpose of an investigation. One interviewee mentioned that there have been cases in which the third-party rule (which prohibits law enforcement from sharing information received from a foreign authority to another authority without prior consent) prevented law enforcement from providing information, and this was deemed not satisfactory for the DPA, adding that such cases are not uncommon. One interviewee from a DPA mentioned some cases in which the police referred to the national security exemption of Article 10 of the LED, while, in the view of the interviewee, ‘the nature of the data and the context [were] not supporting such a claim’. Some DPA experts called for a legal basis to make cooperation and document submission mandatory, highlighting that such a legal basis does exist in some Member States, with one interviewee calling for a legal clarification aiming at also making confidential data fully accessible to the DPA.

Echoing what some operational agents identified as a challenge in their exchanges with data protection experts, the lack of in-house expertise was mentioned as potentially problematic by some interviewees from DPAs, notably when it comes to assessing the grounds under which a data subject’s rights may be limited. One interviewee stated that, in most cases, the DPA can only assess whether the argument put forward by the police is reasonable.

Cases [on information to be given to the data subject] that involve a police assessment of whether to withhold information for the sake of protecting the investigation can be difficult to scrutinise because we lack the police expertise. Of course, we need to look at whether [the police] have a reasonable argument – and whether we understand the argument – but otherwise, we can’t do much more than trust that it is correct.

An officer at a DPA

Some respondents from DPAs emphasised that investigations benefited from good cooperation with competent authorities, and several insisted on the essential role of DPOs during their investigations. Similarly, many interviewees confirmed that their DPA maintains a list of LED DPOs at the national level, although some experts interviewed by FRA stated that they do not have or require such a list, as they know DPOs in law enforcement. FRA also asked about whether, to their knowledge, DPA officials were contacted in confidence by DPOs from law enforcement or the judicial authorities to raise issues confidentially. Several of them stated that this was the case: in some cases, this related to processing of data that the DPO saw as potentially problematic and, in other cases, it related to DPOs’ opinions not being taken on board. In one Member State, the DPA interviewee explained that they know it is difficult for DPOs to be heard by police chiefs and for a balance to be found between operational necessity and data protection, referring to this as being ‘a daily battle’. In another case, a DPA interviewee stated that, ‘while not strictly whistleblowing’, DPOs contacted them to raise issues related to resources and institutional capacities.

[Having the DPO as the main point of contact] is very beneficial, as they are knowledgeable, understand the issues, and know what needs to be done.

An officer at a DPA

Some interviewees from the DPAs indicated, however, that they do not systematically turn to DPOs when there is an investigation and instead contact them only on a ‘needs basis’. They consider that only data controllers should be approached during an investigation and that the DPOs should be approached only if they played an active role in the data processing under investigation. Indeed, FRA’s findings also identified some dissonant perceptions in the appreciation of the role of the DPOs: while a majority consider DPOs as their direct interlocutors, one interviewee considered them as being ‘part of their institution’ and, therefore, not independent enough to be trusted interlocutors of the DPA. Another interviewee considered the DPO to be an ‘internal supervisor’.

Several DPA interviewees identified what they considered to be a serious lack of expertise and understanding of LED requirements within law enforcement and judicial authorities and, remarkably in a few cases, by DPOs. One example of this can be found in challenges identified by DPAs when it comes to notifications of personal data breaches. Some respondents highlighted to FRA that they believe there is ‘little awareness in law enforcement authorities’ of when data breaches should be reported. Two issues were identified: the first was related to the seriousness threshold (one interviewee clarified that competent authorities would only report breaches that pose ‘great risk’, which, in their view, could potentially contradict Articles 10 and 17 of the LED) and the second was in regard to the differentiation between potential and confirmed breaches. The thresholds of the seriousness of the breach were indeed identified as lacking clarity for both operational staff and DPAs by a number of experts interviewed.

One challenge the DPA faces is that the thresholds for identifying data breaches are not as stringent under the LED as they are under the GDPR.

An officer at a DPA

For their supervisory mandate to be effective, the LED provides that DPAs should be entrusted with corrective powers, such as issuing warnings, ordering controllers to bring processing operations into compliance or imposing temporary or definitive limitation – including bans – on processing (Article 47(2) of the LED). DPAs were asked whether they faced any enforcement issues and, in particular, whether the application of criminal procedural law prevented them from using these corrective powers in practice, given the independence and secrecy of criminal investigations.

A majority of DPAs stated that they did not face any resistance stemming specifically from the national criminal procedural law in the application of corrective powers; several of them mentioned that there had been no or very few cases that ended in corrective powers being applied under the LED. Several DPAs insisted that they were very aware of the limited scope of their investigations when it comes to criminal investigations, also recalling that, de facto, this limits the cases in which corrective powers can be applied.

In the few interviews in which respondents identified limitations linked to the application of the criminal procedural law, the following issues were raised.

  • In one case, the DPA expressed concerns that the code of criminal procedure could impair data protection in a way that is not justifiable, as it is considered by law enforcement authorities as excluding the DPA from applying both investigatory and corrective powers.

The [law enforcement authorities, including corresponding ministries] are of course also bound by law and order. They therefore ensure that the law is observed, including in their subordinate authority. However, [they believe that] no independent third body such as the [DPA] should come in and presume to know better and exercise legal supervision … I would now counter that with ‘Yes, but that’s how it’s intended by the European legislator’ … [W]e, as the DPA, have special legal supervision over the law enforcement authorities in the duty area, namely for data protection law.

An officer at a DPA

  • In another case, the DPA stated, that they have no possibility to prevent the disclosure of personal data after a seizure by the prosecution or by the national bureau of investigation, as it is mandated by criminal procedural law. The interviewee believes that competent authorities perceive this as a case in which a specific law overrides general rules: ‘we were unable to have the names of the other … victims or the defendant’s criminal record removed from the indictment because the … court ruled that the Criminal Procedure Code explicitly allows such disclosure’.
  • In a few cases, interviewees reported that their investigations must be stopped when data processing is related to criminal investigations, that is, for secrecy reasons, for reasons related to the protection of the evidence or when an administrative misdemeanour is classified as a criminal offence at a later stage.

While not specifically related to the application of the criminal procedural law itself, some interviewees identified further challenges when it comes to the enforcement of the LED legal regimes, including corrective powers. One interviewee noted that the legislator specified cases when a fine cannot be imposed for violations under the LED legal regime, which has created ‘a skewed relationship between the competent authorities under the LED’, namely those that may receive fines and those that are exempt from the application of such corrections. One interviewee stated that the main challenge stems from the fact that ‘sanctioning public authorities and paralyzing data processing [by these institutions] would have a significant political influence’.

Finally, to ensure its consistent application, the LED sets out that DPAs should provide each other with mutual assistance. In its first evaluation, the Commission reported that mutual assistance had been very rarely utilised to date. FRA’s research confirms this finding: for a majority of the DPAs interviewed, cooperation with other EU DPAs mostly takes place under the GDPR regime. Some of the cases mentioned by the DPAs referred to inquiries asking about the interpretation of provisions of the LED. However, in general, the mutual assistance regime is not seen as valuable or relevant for LED-related matters. A few DPAs also noted that cross-border cases can be dealt with under the Europol Regulation [30] Regulation (EU) 2016/794 of the European Parliament and of the Council of 11 May 2016 on the European Union Agency for Law Enforcement Cooperation (Europol) and replacing and repealing Council Decisions 2009/371/JHA, 2009/934/JHA, 2009/935/JHA, 2009/936/JHA and 2009/968/JHA (OJ L 135, 24.5.2016, p. 53, ELI: http://data.europa.eu/eli/reg/2016/794/oj).
. Similarly, almost all of the DPAs stated that their authority did not investigate transfers of personal data to non-EU countries or international organisations, as, in their view, this would fall outside the scope of the LED or would fall under the national security exemption.

The findings reveal systemic obstacles to DPAs’ effective investigation of law enforcement and judicial authorities. While most DPAs consider their legal powers sufficient, resource constraints relegate enforcement to reactive, complaint-driven actions, leaving proactive oversight neglected. Early engagement with authorities on topics such as AI, biometrics or surveillance technology is valuable but informal, creating blurred boundaries between guidance and enforcement. The lack of in-house IT expertise further hampers the scrutiny of modern technologies, with DPAs struggling to assess risks in facial recognition, drones or big data analytics. Although some outsource or recruit specialists, most lack the capacity to keep pace with technological advances.

Access to data emerges as a recurring friction point. While security clearances generally facilitate access, classified materials and national security exemptions (Article 10 of the LED) create deadlocks, with some interviewees noticing that authorities may invoke procedural laws to withhold information. Disputes over what constitute ‘necessary’ data may further delay investigations, as police push back on disclosure requests.

Expertise gaps can reinforce these challenges. Some DPAs indicated that they struggle with scrutinising law enforcement justifications due to a lack of operational insight. DPOs’ variable competence (from highly skilled to underprepared) adds inconsistency, with some DPAs being contacted in a ‘whistleblowing’ capacity by DPOs who are frustrated by their advice being ignored. Breach notifications also exemplified this, as some respondents indicated that they believe that there is little awareness within law enforcement authorities regarding when data breaches should be reported, leading to misjudged thresholds of only ‘high-risk’ incidents being reported.

Enforcement powers can also face legal and political hurdles. While most DPAs report no resistance from criminal procedural laws, exemptions for ‘ongoing investigations’ shield authorities from corrective actions. Sanctions are rare, with political sensitivities deterring fines or processing bans against public bodies. Mutual assistance (Article 50 of the LED) is largely unused, hindered by divergent national implementations and a cultural reluctance to collaborate.