Victoria Police have arrested a 70-year-old man in connection with a series of sex assaults on children dating back to the 1970s, and are concerned there may be more victims.
Harry Charles Sadd faces three counts of indecent assault by a male on a male person and one count of sexual assault, and does have previous convictions for similar crimes.
It was only after a past victim came forward did police decide to make another arrest.
Sadd has worked previously as a badminton coach and a teacher.
Anyone who may have information on Sadd is asked to come forward.