Many want to exempt any videos taken with a body camera in a private place, the definition of which can vary, according to data compiled by the Reporters Committee For Freedom of the Press.

That means, depending on the place, it may soon get a lot tougher for the public to see what its police officers are up to, even in cases when an officer uses deadly force.

“It’s a real challenge,” said David Roberts, senior program manager for technology at the International Association of Chiefs of Police, which helps departments develop body camera policies. “The advice we give to agencies is to sit down and really think this thing through. You need to engage the community, you need to engage privacy advocates. It’s not something where three guys in department should sit down in a room and develop.”