ACT Policing are seeking witnesses to the forced entry of 20 vehicles overnight in Griffith, Saturday 16 June.
Two underground car parks of the same apartment block on Canberra Avenue were the target of thieves who smashed the windows of the vehicles apparently looking for loose change.
ACT Policing would like to remind people not to leave any valuables including money in their vehicles.
Anyone who may be able to assist with the investigation is urged to contact Crime Stoppers on 1800 333 000, or via the Crime Stoppers website on www.act.crimestoppers.com.au. Information can be provided anonymously.