A man has been charged with the sexual assault of a boy in Sydney's northwest more than 30 years ago.
In September last year, detectives from the Child Abuse and Sex Crimes Squad began investigating allegations of child sexual assault by a man between 1985 and 1989.
Detectives arrested a 65-year-old man at a home near Burwood on Wednesday and charged him with the sexual assault of a person under 16 and sexual assault of a person aged between 14 and 16.
NSW Police will allege in court the man sexually assaulted a boy - then aged between 10 and 14 - at various locations in Sydney's northwest between 1985 and 1989.
The man was granted strict conditional bail to appear at Burwood Local Court on Monday.