A former Victoria-area youth badminton coach is facing 23 new sex-related charges stretching back roughly five decades, following an investigation launched last summer by police.

Harry Charles Sadd, aged 70, was arrested in Victoria Tuesday. He was first arrested last summer on one count of sexual assault and three counts of indecent assault dating back to 1978.

At the time, police said he already had prior convictions for sexual assaults involving young male children and teens.

After the charges were announced last summer, several more people came forward prompting the Victoria Police Department's Special Victims Unit to launch a further investigation looking for additional victims.

On Wednesday police announced 12 more men have come forward. They said all alleged victims were between the ages of nine and 15 at the time of the alleged assaults. Some of the cases go back to the late 60s.

Sadd was expected to appear in court on Wednesday to face the new charges which include:

Eight counts of sexual assault.

Six counts of indecent assault

Three counts of gross indecency.

Four counts of buggery or bestiality.

Two counts of assault with intent to commit buggery or indecent assault on a male.

The charge of buggery was written out of the Canadian Criminal Code in 1988, but the old law is still used to prosecute cases taking place before 1983, according to the Justice Department website.

Police are asking anyone victimized by Sadd or with information about his activities with children and who have not yet spoken to police, to call their non-emergency line at 250-995-7654.

Victims can also contact the Men's Trauma Centre at 250-381-MENS (6367) or visit www.menstrauma.com, or, for those wishing to remain anonymous, Greater Victoria Crime Stoppers at 1-800-222-8477.