NORTH HOLLYWOOD (CBS) — A former maintenance man was charged Thursday for allegedly hiding video cameras and taping women and girls in dressing rooms throughout the Sears store at the Valley Plaza mall.

Alejandro Gamiz, 27, was scheduled to be arraigned Friday in Van Nuys, according to the City Attorney’s Office.

He was charged with 30 counts of peeping into a changing room with the intention of invading an individual’s privacy and 30 counts of using a concealed video recording device inside a changing room.

According to city prosecutors, Gamiz used an array of cameras that were linked to laptop computers. The cameras were triggered by motion sensors, and Gamiz would allegedly download the videos during his after-store-hours shift.

Investigators believe the cameras were in operation for at least three years.

If convicted, Gamiz faces up to six months in jail and up to a $1,000 fine for each count.