When Vietnam war veteran Barry Woodhouse went to report a minor traffic accident to police, he never expected a policeman to turn on him.

Barry had been involved in a minor road bingle on Western Road in Boronia and with concerns over the other driver’s identification, his wife Christina urged her husband to seek reassurance from Knox police.

CCTV footage shows the sequence of events on the night of July 27, 2015 when the disability pensioner and his wife encountered Constable David Keith Dawson at Knox police station.

At 8.56pm Barry and Christina walk into Knox police station.