A 73-year-old sex offender, who was described by one of his three victims as a "monster in disguise", corrupted and stole the innocence of his victims a District Court judge said as he jailed him for eight years.

The man, who is not named to protect the victims' identities, was convicted after trial of child sex offences, including indecent assault and indecent dealings.

The court was told the man molested three teenage boys in the 1980s, including boys who he employed for weekend work in his home handyman business about 30 years ago.

District Court judge Ron Birmingham said the man took away the innocence and childhood of his victims, who he corrupted.

He said after luring in his victims with advertisements for weekend work, the man, who was in his early 40s at the time, had "groomed" the boys and abused them when he was in a position of trust, preying on their fear and shame.

In a victim impact statement to the court, one of the victims described the man as a "monster in disguise" whose motives were "selfish, sinister and grotesque".

Judge Birmingham accepted a term of imprisonment would be difficult for the 73-year-old man who has Parkinson's Disease and prostate cancer.

The man was jailed for a total of eight years. His sentence was backdate to April 9 and he will be eligible for parole after serving six years.

The West Australian

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