Cmdr. Ian Lafrenière said the officer has been reassigned.
Lafrenière would not confirm the identity or rank of the officer. However, he said the officer had been working on criminal investigations.
The officer has not been charged with any criminal offence.
“The person targeted by the investigation is removed from his normal duties and he’s doing a different duty now, with no access to data banks or access to sources,” said Lafrenière.
The Montreal police force launched the internal investigation into its own officers in the shadow of the arrest of Benoit Roberge, a retired Montreal organized crime investigator accused of selling information to the Hells Angels.
“When the [police] chief, Marc Parent, went public last fall he mentioned that there were still some investigations undergoing and this is the proof of that,” Lafrenière said.
Last week, CBC's the fifth estate and Radio-Canada’s Enquête reported that an officer had been put on desk duty after an internal investigation revealed he had failed a lie detector test issued following Roberge’s arrest in October 2013.