A spate of break-ins occurred overnight on Monday with at least 19 vehicles damaged over several hours.
Cars parked in and around the CBD were targeted during the crime spree from 11pm-2am.
Thieves smashed windows to gain entry into cars on Moulder, Peisley, William, March streets and the Orange Railway Station, taking off with a range of items of value.
A mobile phone, a lap top and fuel cards were among the goods taken during the overnight spree.
Detective Inspector Bruce Grassick said police had reason to suspect a large group of youths were responsible for the crimes.
"We believe between five to seven juveniles could be involved," he said.
In addition to the damage to vehicles, bollards and light posts along Peisley Street and in the Orange City Library car park were also damaged in the early hours of Tuesday morning.
Several vehicles parked behind two licensed premises in the centre of town were targeted.
One driver, who asked not to be named for fear of retribution, said he'd left his car outside the pub on Monday night after having a few drinks.
"Getting a call to let you know that's happened is frustrating, especially when you're doing the right thing by not driving after having a few drinks, and it shouldn't happen at all really," he said.
"Still, it's a lesson not to be so complacent and make sure there's no valuables in your car if you are leaving it overnight.
"I was lucky in that nothing valuable was taken though."
Inspector Grassick urged anyone who might have seen anything suspicious overnight on Monday to contact Orange police.
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