By Elisabeth Smith

FAIRFIELD (CBS13) — A Fairfield police officer is under investigation following reports of a “secretive group” of officers that celebrated police shootings.

The officer used to work for the Vallejo Police Department, where allegations have surfaced that officers commemorated shootings by bending their badges.

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In a statement Wednesday, the Fairfield police chief called the practice “repugnant” and promised a full investigation.

“Secretive groups wearing altered badges that celebrate police shootings have not and will never be tolerated within the Fairfield Police Department,” Chief Walter Tibbet said.

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Last month, the police chief of Vallejo said he was opening an inquiry into allegations that officers bent their badges to mark on-duty killings. Vallejo Police Chief Shawny Williams told the San Francisco Chronicle that he would not tolerate such a “despicable” act if the claims are true.