Department of Magical Law Enforcement

The Department of Magical Law Enforcement is the largest department at the Ministry of Magic. It encompasses several divisions. Arguably the most important of the various departments, this one is a combination of police and justice facilities, and is roughly equivalent to Britain's (muggle) Home Office. The department was once headed by Bartemius Crouch Sr. The former Head of the Department of Magical Law Enforcement, prior to her brutal death at the hand of Lord Voldemort, was Amelia Bones. Located on the second level of the Ministry of Magic, it includes:


 * The Auror Office, a team of elite dark wizard hunters.
 * The Magical Law Enforcement Squad, a team of wizards tasked with pursuing the day to day law offenses. The previous head of this office was Bob Ogden. They were brought to Little Hangleton to arrest Marvolo and Morfin Gaunt for attacking Ogden and the muggle Tom Riddle.
 * The Improper Use of Magic Office which punishes wizards for using magic in inappropriate ways, at the wrong time, or in violation of magical laws;
 * The Misuse of Muggle Artifacts Office which regulates the use of magic on Muggle objects and recovers those which have been bewitched; which is located in a tiny office, staffed by an enthusiastic - albeit slightly ill-informed - Arthur Weasley and his assistant, Perkins. The aim of the office is to keep enchanted items out of the hands of Muggles, often necessitating raids to keep enchanted items out of circulation. Harry Potter briefly visited this office before his trial in 1995
 * The Office for the Detection and Confiscation of Counterfeit Defensive Spells and Protective Objects is the office in which Arthur Weasley was promoted to in 1996. Apparently, several new offices sprung up when Rufus Scrimgeour came to power as Minister for Magic because of the return of Lord Voldemort.

Harry Potter eventually became Senior Auror (Head of the Auror Office), which under Amelia Bones had been headed by Rufus Scrimgeour, and under Pius Thicknesse was headed by Gawain Robards, who likely continued on after Kingsley Shacklebolt became Minister. Hermione Granger, after working with the Department for the Regulation and Control of Magical Creatures, eventually took a position "high up" in the DoMLE, though what division she may have headed has not been revealed.