National Extremism Tactical Coordination Unit

The National Extremism Tactical Co-ordination Unit (NETCU) was a British police organisation funded by, and reporting to, the Association of Chief Police Officers (ACPO) that coordinates police action against groups in the United Kingdom it describes as extremist.

As of April 2007, it was headed by Superintendent Steve Pearl. Because the ACPO is not a public body but rather a private limited company, NETCU is exempt from freedom of information laws and other kinds of public accountability, even though they are funded by the Home Office and deploy police officers from regional forces.

"NETCU provides tactical advice and guidance on policing single-issue domestic extremism. The unit also supports companies and other organisations that are the targets of domestic extremism campaigns. NETCU reports through the National Coordinator for Domestic Extremism (NCDE) to the Association of Chief Police Officers Terrorism and Allied Matters - ACPO(TAM) committee."

NETCU answers to the Association of Chief Police Officers' (ACPO) Terrorism and Allied Matters Committee, and in particular to ACPO's National Coordinator for Domestic Extremism, Detective Chief Superintendent Adrian Tudway. It works with the Home Office, and the National Public Order Intelligence Unit.

The unit was created in or around May 2004 to coordinate police action in relation to animal rights campaigns. It is based in Huntingdon, Cambridgeshire, which has been a focal point for animal rights activism as a result of the Stop Huntingdon Animal Cruelty campaign.

Apart from animal rights groups, it has also investigated the UK Life League, a direct action pro-life group that protests outside abortion clinics.