Chicago Police Department drafts new use-of-force policy

CHICAGO —The Chicago Police Department has proposed a new policy that would require officers to use the least amount of force necessary and centers on the "sanctity of life."

Chicago Police Superintendent Eddie Johnson said Friday that the policy will undergo 45 days of public comment, which he called a department first and a step toward a promised improvement in transparency. The proposal comes as the U.S. Department of Justice investigates Chicago police after an officer fatally shot a teenager 16 times in 2014.

The proposal also requires officers to offer medical aid to those injured in use-of-force incidents. Officers will be expected to intervene if they see another officer violating department policy. Deadly force could only be used to prevent immediate threat of death or great bodily harm.