Two-fifths of the public believe corruption is now a problem within the police, according to a new survey conducted for ITV.
In addition, a third of the public said they trust police less in the wake of incidents such as the Plebgate affair, Mark Duggan's shooting and the unmasking of Jimmy Savile as a serial sex offender, the poll for ITV's Tonight programme Can We Trust The Police? showed.
The survey of 2,000 people, conducted by OnePoll, found one in five say they do not believe the police are on their side, while 18% of people said they would hesitate to report or would definitely not report an issue to the police.
The show, which goes out at 7.30pm tonight, features an interviews with Peter Garrigan, 26, who took the police to court after he was assaulted by an officer at a railway station in Liverpool.
Watch Can We Trust The Police? On ITV at 7.30pm tonight.
More top news
Ahead of its roll-out in Manchester, some Universal Credit recipients describe feeling "trapped" as they wait weeks to receive benefits.
The trial of a soldier accused of trying to kill his wife with a sabotaged parachute has been shown video of how it could be done.
An ITV News investigation has uncovered the staggering scale of disruption caused by over-running roadworks across the country.