Mr. Big (police procedure)

Mr. Big (sometimes known as the Canadian technique) is a covert investigation procedure used by undercover police to elicit confessions from suspects in cold cases (usually murder). Police officers create a fictitious grey area or criminal organization and then seduce the suspect into joining it. They build a relationship with the suspect, gain their confidence, and then enlist their help in a succession of criminal acts (e.g., delivering goods, credit card scams, selling guns) for which they are paid. Once the suspect has become enmeshed in the criminal gang, they are persuaded to divulge information about their criminal history, usually as a prerequisite for being accepted as a member of the organization.

The Mr. Big technique was developed by the Royal Canadian Mounted Police (RCMP) in British Columbia, with the first documented case taking place in March of 1965 during the investigation of David Louis Harrison, a former Vancouver police constable who was tried and convicted for taking part in the robbery of $1.2 million of cancelled currency from the Canadian Pacific Merchandise Services warehouse in Vancouver. Harrison was convicted using evidence gained by Cpl. Allan Richards, posing as crime syndicate hoodlum John Clarke, and his sting partner, police operative Al Brooks. Harrison testified that he believed John Clarke was a violent syndicate hoodlum. Harrison further testified that Clarke was often packing a gun, that Clarke carried a vial of nitroglycerine around his neck that he would throw at a police car if it got too close to him, and that he was afraid he would be harmed if he didn’t play along.

The Mr. Big tactic has been used in more than 350 cases across Canada as of 2008. The RCMP claims that the person of interest was either cleared or charged in 75% of cases (the rest remaining unresolved and requiring further investigation). Of the cases prosecuted, an estimated 95% result in a conviction.

The use of this technique is essentially prohibited in some countries, including the United Kingdom and the United States. In Germany, which has high standards for what constitutes a voluntary confession, it may be more difficult to use confessions obtained by this technique. The procedure has been used by police in Australia and New Zealand, and its use has been upheld by courts in both countries.