Measure Implementation

Is this measure possible in your Member State under International Judicial Cooperation?

Yes, it involves assisting the requesting state in the conduct of criminal investigations by authorising domestic officers to act under covert or false identity. This measure can be obtained through police co-operation.

Legal Framework

International legal framework applicable for this measure in your Member State

2000 EU Mutual Legal Assistance Convention

Competent Authority

* receive the request/decision for judicial cooperation

* receive the request/decision for judicial cooperation National Crime Agency (NCA) The UK International Crime Bureau Units 1 - 6 Citadel Place, Tinworth Street, London SE11 5EF * execute/recognise the measure (if other than the receiving authority) If the request is accepted, the request will be referred to the relevant law enforcement agency.

Accepted languages

Accepted languages for the request/decision

All requests should be in English. If an English translation is not provided, is incomplete, or is not carried out to a high professional standard, the request will be sent back to the requesting authority.

Execution deadline

Deadlines for the execution of the request/decision (where applicable)


Concise legal practical information

Special requirements

a. Special requirements The request must be necessary and proportionate in relation to what is sought to be achieved by it being carried out. It will be carried out for the for the purpose of preventing or detecting crime or of preventing disorder. Covert investigations shall take place in accordance with the national law and procedures of the Member States on the territory of which the covert investigation takes place. The Member States involved shall cooperate to ensure that the covert investigation is prepared and supervised and to make arrangements for the security of the officers acting under covert or false identity. Dual criminality will be applied. b. Other useful information Requests should include a brief description of the assistance sought and contact information to enable the UK to get in touch and seek further details about the proposed activity. The link below gives information for competent authorities abroad about obtaining evidence within the UK (or abroad) to assist in criminal investigations or proceedings:

Last reviewed on 29 July 2022 by EJN Secretariat


  • Cross-border operations (A.70-A.73)
  • A.70 Cross-border surveillance

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