A former Calgary church volunteer has been arrested and charged with molesting teenage boys in incidents dating back as far as 1981.

Police laid charges against 58 year old Russell Rodman on Tuesday and his son said the charges are only the latest step in a difficult process.

"He came to me actually and told me this was what was going on and he needed help," said Greg Rodman.

Rodman's family and church then urged him to turn himself in to police.

In 1981, Rodman was a volunteer leader at at least one Calgary Baptist church.

Police say that's when Rodman first started molesting boys – they say three boys were involved, aged 11 to 14 years old.

The boys were assaults at various times over the next 14 year at Rodman's home.

Police say the victims are showing a lot of courage in speaking out. "It's been a difficult road for the victims," says Det. Stephen Johnson.

Johnson adds that it might take some time for other victims to come forward.

Rodman is a current member of the Bridgeland Baptist Fellowship church and the current pastor says the church alerted members when the allegations came out.

Rodman was quickly removed from any kind of leadership roles as soon as they came to light, says Pastor Joel Gordon.

Russell Rodman is charged with two counts of sexual assault and one count each of gross indecency, indecent exposure to a person under 14 and sexual contact with a youth by a person in authority.

He is expected to appear in court on February 10.