Constable Scott Heron, 39, was one of three men arrested and charged in connection to a large-scale cheese-smuggling scam uncovered by investigators in the US and Canada.
Officials found that $200,000 (£126,000) worth of cheese - which costs less in the US - was taken across the border and illegally distributed for profits of $165,000 (£104,000).
Another of the suspects, Casey Langelaan, 48, is a former police officer, while the third man, Bernie Pollino, 44, is a civilian. The trio faces conspiracy and smuggling charges, as well as other violations.
A news release by the Niagara Regional Police (NRP) said the force had been investigating the scam since January.
A local pizza shop owner, Brandon Elms, told CBS News: "Cops came in here a couple of times asking questions about it. We get all our stuff legit. We thought it was a joke at first. Who is going to go around trying to sell smuggled cheese? The cheese bandits, the mozzarella mafia!"