The Denver Police Department is testing on-body cameras for adoption in a move expected to lead to greater accountability of officers and potential privacy issues.

Twenty three Denver officers are testing the devices during a 60-day pilot program to determine if the gear could be more widely distributed among the force. During the trial, officers learning to use the new technology will decide when to activate the cameras, a decision that has drawn fire from the American Civil Liberties Union of Colorado.

The civil libertarian group wants the cameras to be on all day, Jessie Ulibarri, the ACLU's public-policy director, told the Denver Post.

"To get a picture of what is going on in our streets," said Ulibarri. "We would want them to be on during the day. It is a stretch to say that in 2011 police officers don't know how to use basic technology like cameras."