ST. LOUIS (AP) — A new regulation in St. Louis will require any police officer who discharges a gun in the line of duty to submit to a drug and alcohol test within three hours of the incident.

KMOV-TV reports that the city personnel department issued the order Monday. The previous rule required testing within eight hours.

Activists have been seeking the policy change amid concerns about officer-involved shootings. The rule applies to any city employee who carries a weapon, including park rangers and city marshals.

The order also requires drug and alcohol testing for any incident or accident resulting in death or serious physical harm to anyone.

___

Information from: KMOV-TV, http://www.kmov.com