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FORT WORTH, Texas -- A Fort Worth, Texas police officer was arrested Wednesday after he was caught with marijuana while on duty.
Officer Wesley Lamb faces charges of drug possession and tampering with evidence.
Police said the investigation was the result of a tip from an unidentified person who reported witnessing Lamb smoke marijuana in uniform, in his patrol car, while on duty.
Undercover officers assigned to a special internal affairs investigative unit then set up a sting operation.
An undercover officer posed as a citizen who wanted to turn in 86 grams of marijuana that he found to police.
Lamb did not report the incident or bring the drugs to the property room, police said.
Instead, investigators followed Lamb to his house where he moved the marijuana to his personal vehicle.
Investigators later executed a search warrant on his car and house and recovered the drugs.
Lamb is free on $7,500 bond.
Police Chief Jeff Halstead announced the charge and resignation of Officer Lamb at a Wednesday news conference.
Halstead also said he'll reorganize the department to increase field supervision of officers.
"I'm ashamed," said police chief Jeffrey Halstead. "This will not be tolerated."