BANGOR — A retired Royal Canadian Mounted Police officer accused of smuggling narwhal tusks has been sentenced to five years, two months in federal prison.

Prosecutors say Gregory Logan, of St. John, New Brunswick, smuggled about 300 tusks valued at $1.5 million to $3 million into Maine in false compartments in his vehicle.

Narwhals, which are federally protected, are medium-sized whales known for spiral tusks that can grow longer than 8 feet.

Logan was sentenced Wednesday in Maine on money-laundering counts under an agreement in which smuggling charges were dropped. He already served four months of home detention and paid a $350,000 fine in Canada after pleading guilty to a related wildlife-smuggling crime.

Logan originally was charged along with Andrew Zarauskas of New Jersey and Jay Conrad of Tennessee. Zarauskas was sentenced to 33 months in prison.