Dennis Cheeseman was fined $1,000 on Sept. 9 for having prescription drugs that were not in his name.
Cheeseman was released from prison last November after serving two-thirds of his sentence for manslaughter in the fatal shooting of the RCMP officers at a farm in Mayerthorpe in 2005.
The conditions of his release included abstaining from drugs and alcohol until his entire sentence expires on April 13, 2016.
Sources tell The Canadian Press that Cheeseman was released back into the community from a federal prison Sept. 17 on the same conditions.
The Correctional Service of Canada declined to comment, citing federal privacy laws.
Cheeseman and his brother-in-law, Shawn Hennessey, pleaded guilty to manslaughter for giving James Roszko a rifle and a ride to his farm where the Mounties were gunned down.
Constables Peter Schiemann, Anthony Gordon, Brock Myrol and Leo Johnston were guarding a Quonset hut on Roszko's property on March 3, 2005, as part of a marijuana grow-op and automobile chop-shop investigation.
Roszko ambushed the officers before he was shot and wounded, then killed himself.
Hennessey was granted day parole on Sept. 23.