Police are calling for witnesses after a jewellery store robbery in broad daylight at the Tuggeranong Hyperdome ended in a dramatic escape on Wednesday.
Just after midday, a man armed with a large hammer entered the Michael Hill Jewellers store and smashed a glass display case, grabbing two gold chains.
When he fled the store, a number of bystanders attempted to stop him, as captured on CCTV footage.
Several people can be seen lunging at the man, who dropped both gold chains during his escape.
He eventually managed to flee the shopping centre but the jewellery was later returned to the store by a member of the public, police said.
Station Sergeant Chris Meagher said up to 250 people could have witnessed the robbery and resulting scuffle, as the nearby food court was particularly busy during school holidays.
No one was injured during the robbery.
While Station Sergeant Meagher applauded the intervention of bystanders, describing one attempt to stop the offender as a "reasonably good rugby tackle", he also reminded the public not to take the law into their own hands.
The offender was wearing grey track suit pants, a black hooded jumper, sunglasses and gloves.
Releasing CCTV footage of the incident on Friday, police said they were particularly interested to speak to those bystanders who attempted to stop the offender.
Anyone with more information is urged to contact Crime Stoppers on 1800 333 000, quoting reference number 6095549.