The Minneapolis Police Department on Wednesday released video taken by officers wearing body cameras as part of a new pilot program in three of the city's five precincts.

The 15-minute long video, with commentary by assistant chief Matt Clark and deputy chief Travis Glampe, shows traffic stops captured on camera by several of the 36 patrol officers – from the First, Fourth and Fifth precincts – participating in the program that started last month. On Wednesday, the City Council approved a four-percent increase in the police department's $148 million budget, which included $1.1 million for the diminutive cameras.

Proponents hope the cameras will encourage both officers and the public to be on their best behavior, although their deployment has also raised concerns about privacy and cost.

The department has yet to flesh out its camera policy, a draft of which was released last month, though officials have said officers will be required to turn on their cameras during most of their encounters with the public.

Clark said in the video that camera footage will be stored for one year on servers maintained by Taser international and VieVu, the two companies participating in the six- to nine-month pilot project – video with "evidentiary value" will be stored for six years.

"Our policy was put in place to give our officers the ability to turn the cameras on an off based on the criteria listed in the policy," Glampe said. "Anytime an officer takes enforcement action, thinks they're going to take enforcement action or believes that the event should be recorded, they should be turning on the cameras at that point."