A 30-year-old man was arrested in Dee Why on Friday morning, December 7, over allegations he spied through the window of a 13-year-old girl in Collaroy Plateau on November 30.

'Peeping tom' arrested in Dee Why after he spied on 13-year-old girl

A man who allegedly exposed himself to an off-duty police officer in the toilets at Sydney’s Central station has been arrested.

Police say the off-duty probationary constable noticed a man outside his cubicle staring at him through the door crack about 6.45pm on Thursday.

The man allegedly went into the next cubicle, knelt on the floor and indecently exposed himself to the officer.

He was also allegedly seen peeking into another occupied cubicle.

On-duty police officers attended and arrested the 43-year-old.

He was charged with wilful and obscene exposure in a public place and voyeurism.

The man is due to face the Downing Centre Local Court on January 22.