Patrick Brazeau was arrested early this morning at a home in Gatineau.
The suspended senator had apparently been arguing with a woman on the balcony of a home on Labrosse Boulevard.
Gatineau police say Brazeau appeared to be intoxicated when they showed up at around 4 o'clock.
He was taken into custody and is expected to be court later today to face unspecified charges.
Brazeau was named to the Senate by Prime Minister Harper in 2008.
He was expelled from the Conservative caucus in 2013 after being charged with domestic assault and sexual assault and was suspended from the Senate last fall.
He recently took a job as a manager of an Ottawa-area strip club.