Three members of the Calgary Police Service have been criminally charged as part of a sweeping police corruption investigation.

The officers have been named for their work with a private investigation firm Walton and Walton.

That firm’s owner, Steve Walton, his wife, Heather and a client, Calgary businessman Ken Carter, also face charges.

Five members were named in CPS documents that allege officers accessed CPS computer systems, conducted surveillance while on duty and made money on the side while working for the firm.

Two of them, current officers, Constable Bryan Morton and Sergeant Brad McNish, are charged with bribery of an officer, unauthorized use of a computer and breach of trust.

Morton is also facing a criminal harassment charge.

Anthony Braile, who was recently fired from the force after a high speed chase, is charged with criminal harassment, bribery and unauthorized use of a computer.

As for the owners of the private investigation firm, both Walton, who is a retired officer, and his wife, a former civilian member of CPS, are facing multiple charges.

One of their clients, Ken Carter, was also taken into custody, charged with criminal harassment and perjury.

It was a complaint from Carter's ex-wife that initially sparked the internal police investigation.

Carter, a former Jenny Craig franchise owner, was alleged to have paid $1000 a day for Walton's employees to conduct surveillance on her.