As a fluke helps convict a PC of assault during the 2010 tuition fees protest, student William Horner, who broke a tooth during the demo, tells Channel 4 News it could be "the tip of an iceberg".
PC Andrew Ott, who hit student William Horner with his riot shield, was recorded saying after the incident "he's going to have to have done something, coz I've put his tooth out".
EXCLUSIVE: former Metropolitan Police commissioner Lord Stevens is being investigated over allegations of a cover-up of police corruption in the Stephen Lawrence murder probe in the 1990s.
Home Secretary Theresa May establishes a judge-led inquiry into past and present undercover policing in England and Wales, with powers to compel witnesses to give evidence.
A radicalised teenage son of Jehovah Witnesses is found guilty of planning to behead a young British soldier.
Have we really lost the equivalent of nine police forces since 2010? And can crime really be falling at the same time? FactCheck investigates
Files relating to three judge-led inquiries, including the police shooting of Mark Duggan, have gone missing in the post, the Ministry of Justice says.
Police will lose the power to bail people indefinitely under plans announced by the home secretary, lawyer Tom Crone says the system is "grotesque".