Home Office
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Mutual legal assistance (MLA) is a method of cooperation between states for obtaining assistance in the investigation or prosecution of criminal offences. MLA is generally used for obtaining material that cannot be obtained on a police cooperation basis, particularly enquiries that require coercive means.
Requests are made by a formal international Letter of Request (LOR). In civil law jurisdictions these are also referred to as Commission Rogatoire. This assistance is usually requested by courts or prosecutors and is also referred to as judicial cooperation.
Requesting MLA from the UK
The UK provides a wide range of assistance.
The Home Office has produced detailed MLA guidelines, which are translated into Albanian, Bosnian, French, Gulf Arabic, Italian, Macedonian, Polish, Portuguese, Serbian, Spanish and Turkish for authorities outside of the UK who wish to make a MLA request to the UK. The Home Office has also produced instructional guidance to assist with drafting MLA requests from EU member states.
Where to send your requests
In the UK central authorities coordinate MLA requests.
MLA requests in England, Wales and Northern Ireland
The UK Central Authority (UKCA) coordinates MLA requests in England, Wales and Northern Ireland, except for tax and fiscal customs criminal matters which are coordinated by HM Revenue & Customs (HMRC). Information on making MLA requests relating to tax and fiscal customs matters is set out below.
All requests should be sent to the UKCA through the Submit a mutual legal assistance request service. Using the online service reduces the risk of delays, as it collects all the information we need to consider and carry out your request.
Read the security statement for the online submission form.
If you are unable to use the online service, you can email your request to:
- UKCA-ILOR@homeoffice.gov.uk for general MLA requests
- UKCA-roadtrafficoffences@homeoffice.gov.uk for road traffic offence requests
- UKCA-AFC@homeoffice.gov.uk for asset freezing and confiscation requests
- UKCA-atrocitycrimes@homeoffice.gov.uk for atrocity or war crime requests
The UKCA can provide a secure Egress link to send electronic documents to the UKCA which cannot be emailed. Please see ourguide to using Egress(PDF,285 KB,3 pages).
It takes longer to submit a new request by post than through the online service. However, if requests cannot be submitted online or by email, you can post them to us. They should be marked as either Asset Forfeiture and Confiscation, Road Traffic Offences, War Crimes orMLA, and sent to:
UK Central Authority
Public Safety Group
Home Office
6th Floor, Fry Building
2 Marsham Street
London
SW1P 4DF
MLA requests in England, Wales and Northern Ireland relating to tax and fiscal customs matters
MLA requests of a tax and fiscal customs nature should be sent to HM Revenue and Customs:
Criminal Law Advisory Team
HM Revenue & Customs
Solicitors Office
8th floor
Westfield Avenue
Stratford
London
E20 1HZ
Telephone: +44 (0)3000 586324
Email: mla@hmrc.gov.uk
All MLA requests relating to Scotland
Requests seeking assistance solely from Scotland should be sent directly to the Crown Office in Edinburgh (unless the treaty states that requests should be sent to the Home Office).
International Co-operation Unit
Crown Office
25 Chambers Street
Edinburgh
EH1 1LA
Telephone: +44 (0)131 243 8152
Fax: +44 (0)131 243 8153
Email: coicu@copfs.gov.uk
Restraint and confiscation
For England, Wales and Northern Ireland
Requests should be sent to the UKCA through the Submit a mutual legal assistance request service. Using the online service reduces the risk of delays, as it collects all the information we need to consider and carry out your request.
Read the security statement for the online submission form.
If you cant use the service, email your request toUKCA-AFC@homeoffice.gov.uk, using the forms at Annex LAW-8 of the UK-EU Trade and Cooperation Agreement.
For tax matters and fiscal customs matters in England and Wales, and Northern Ireland
HM Revenue and Customs Email: mla@hmrc.gov.uk
For Scotland
International Cooperation Unit, Crown OfficeEmail: coicu@copfs.gov.uk
Service of process/procedural documents
Direct transmission of procedural documents
Procedural documents may be sent directly by the requesting authority to the persons in the UK to whom they are addressed. Procedural documents should always be posted, unless this is not legally possible under the domestic law of the requesting authority.
Requests for service of process/procedural documents
A request may be made to the UK Central Authority or the Crown Office for the service of procedural documents (for example, a summons or judgment) issued by a court or authority in that state in relation to criminal proceedings.
HMRC is not a central authority for the purposes of the service of documents.
To enable service to take place please ensure the return date for summonses is at least 6 weeks from the date of receipt in the UK Central Authority to enable service to take place, otherwise the papers will be returned to the requesting state.
Transfer of Proceedings
The UK is not a signatory to the European Convention on the Transfer of Proceedings in Criminal Matters and has a reservation under Article 21 of the Convention on Mutual Assistance in Criminal Matters.
Requests for transfer of proceedings will be considered on a case-by-case basis. Further information can be found in the MLA guidelines.
Requests for the exchange of criminal records
EU Member States are able to exchange criminal record information directly with the United Kingdom via the UKs Criminal Record Information System (UK-CRIS).
Title IX in Part 3 of the EU-UK Trade and Cooperation Agreement provides for the exchange of criminal records data between the UK and individual EU Member States through a shared infrastructure, supplementing Articles 13 and 22(2) of the 1959 European Convention on Mutual Assistance in Criminal Matters and its Additional Protocols.
The arrangements include streamlined and time-limited processes for exchanging criminal records information and specify that information can be exchanged for crime prevention and safeguarding purposes. Shared technical infr