Home Office

The Home Office (HO) is a ministerial department of the Government of the United Kingdom. It is responsible for immigration, security and law and order in the U.K. 
It is responsible for policing in England and Wales, fire and rescue services in England, 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. The Cabinet minister responsible for the department is the Home Secretary, currently Priti Patel.
The Home Office, which is considered to be one of the Great Offices of State, is known, in official papers and in Parliament, as the Home Department.