National Identification Service (original) (raw)
The National Identification Service (NIS; also called SO4 from its Specialist Operations designation) is a department of the London Metropolitan Police which provides a range of support services on behalf of the Metropolitan Police and other police forces. SO4 also conducts background checks on London residents or former residents who have applied to the Criminal Records Bureau for an enhanced disclosure, deals with subject access requests under the Data Protection Act and publishes the Police Gazette on behalf of the UK Police Forces.