A senior Victorian police officer has been charged over an alleged 18-month crime spree that included claims of fraudulently obtaining six properties, rorting Centrelink, postal theft, making false claims to bank staff and claiming she was someone else.

Sergeant Rosa Catherine Rossi, 56, has been charged by Victoria's corruption watchdog.

The sergeant from Corio did not face Melbourne Magistrates Court on Monday when the extent of her alleged offending investigated by the Independent Broad-based Anti-corruption Commission was revealed.

Sergeant Rosa Rossi handing out "Don’t make it easy for the Thankful Thief" brochures during a promotional event in Wyndham in 2016 Credit:Damjan Janevski

Sergeant Rossi is accused of deceiving locksmiths to fraudulently take possession of houses in Malvern East, Chadstone, Brooklyn and three rural properties in Willaura, about 230 kilometres west of Melbourne.