The S.C. Department of Public Safety this week released a video showing the drunken-driving arrest of a North Charleston police officer last month.

Christina Mask, 29, was off-duty about 1 a.m. on April 22 when she crashed her marked patrol cruiser into a ditch along McMakin Street near Jedburg. The S.C. Highway Patrol, which investigated the wreck, said her blood-alcohol content was 0.17 percent, more than two times the 0.08 percent legal limit for drivers.

Employed by the North Charleston Police Department since 2009, Mask was placed on unpaid leave after she was jailed.

The Post and Courier obtained the video of her arrest through a Freedom of Information Act request. Filmed from a Highway Patrol car, it shows a trooper asking Mask whether she had been drinking, and she acknowledges that she had.

Because its audio is muffled, the video reveals little else about the incident that landed Mask behind bars on charges of driving under the influence and having an open alcohol container in her car.

Before Mask’s arrest, a trooper conducted a field sobriety test.

Clad in a University of South Carolina Gamecocks sweatshirt, Mask sways as a trooper tests her eyes’ ability to track an ink pen in his hand, according to the video.

She stumbles as she tries to walk a straight line and loses count as she stands on one foot.

The trooper then handcuffs Mask, who appears to cry.

Reach Andrew Knapp at 937-5414 or twitter.com/offlede.