Christian Phillips, 18, of Watauga was arrested Tuesday after he tried to deliver a batch of cookies that later tested positive for LSD to the nearby Lake Worth police station, authorities said.

During his arrest, police found a list of 25 police agencies across Dallas and Tarrant counties that they presume Mr. Phillips targeted. Thirteen of those stations were checked off the list.

Three stations confirmed Tuesday that they received a similar package. Some officers in Fort Worth and Watauga ate the suspect cookies.

“There were no ill effects that we were told of,” said Detective Jason Babcock of the Watauga Police Department.

Watauga police arrested Mr. Phillips a year ago on charges of assaulting a police officer, Detective Babcock said. He was later convicted of simple assault and sentenced to community service, which he was serving with Mothers Against Drunk Driving.

On Monday night, Mr. Phillips dropped off cookies in a wicker basket about 6:30 p.m. at the Blue Mound station, Lt. Cain said. A card from MADD was attached.

Sending drugged cookies to the cops and signing the package, “Mothers Against Drunk Driving.” Classic.