More than 150 Baltimore police officers will be outfitted with body cameras as part of a pilot program that will eventually expand to the entire force.

The program launched on Monday. Selected officers will be equipped with one of three types of cameras being tested. In February, the department will select one type of camera and begin giving cameras to all officers who regularly interact with the public. The rollout is expected to last two years.

Deputy Commissioner Dean Palmere said Monday that department officials hope the cameras improve public confidence, provide additional evidence and lead to fewer citizen complaints.

Departments nationwide are being urged to use cameras in light of shootings by police and deaths in custody, including the death of Freddie Gray in Baltimore.

(AP)