The South Hampshire Police Force (Laverstone Division) didn't approve of vigilantes. "They are not above the law," Inspector White was quoted as saying, "and will be punished for any crime they commit in pursuance of their own victims." He them proceeded to regale the Rotary Club audience with exploits of his own crime-fighting career.
On the following day the red-suited 'Mighty Rememberer' ("Your crime, however small, will be remembered and avenged") was convicted of three counts of 'Breaking, Entering and Defecating on the Living Room Carpet of Careless Dog Owners.'
The Mighty Rememberer, aka Donald Parsons, had forgotten about DNA.