|Department of Security|
Responsible for implementation of government defence policy
The Department of Security is a department of the Ministry of Magic. It is probably a sub-division of another department, most likely the Department of Magical Law Enforcement, and is responsible for the implementation of wizarding Great Britain defence policy.  It is possible that their headquarters is located on level eight in the Security Office.
- Harry Potter and the Order of the Phoenix (film) (Mentioned only)
Notes and references