The Home Office (HO) is a ministerial department of Her Majesty's Government of the United Kingdom, responsible for immigration, security and law and order. As such it is responsible for the police, fire and rescue services, visas and immigration and the Security Service (MI5). It is also in charge of government policy on security-related issues such as drugs, counter-terrorism and ID cards. It was formerly responsible for Her Majesty's Prison Service and the National Probation Service, but these have been transferred to the Ministry of Justice. The Cabinet minister responsible for the department is the Home Secretary.