A man from Windsor has been charged with multiple child sex offences.

In June 2023, officers attached to the Child Abuse and Sex Crimes Squad commenced investigations following reports of a sexual assault in Quirindi in April 2023.

Police said that following extensive investigations, detectives attended a home in Windsor, and arrested Bradley van Praag, 43, who allegedly drugged teen boy before sexually assaulting him in northwest NSW.

Praag was taken to Windsor Police Station where he was charged with two counts of aggravated sexual assault of a victim under the age of 16 years.

Police seized two mobile phones and a laptop when a search warrant was executed at the Windsor address. The devices have been forensically examined.

Police will allege in court Praag used a substance to drug a 14-year-old boy before sexually assaulting him.

Following further inquiries, detectives have since laid an additional five charges, including two counts of possess/control child abuse material, the use of a carriage service, and three counts of use of a carriage service to solicit child abuse material.