Police are probing two separate thefts during which thousands of pounds worth of items were swiped.
The first theft occurred at a business premises in Drymen between Christmas and New Year.
Five high-end quad bikes – the value of which is believed to have been around £10,000 – were stole from the premises in Gartness Road sometime between 1pm on Wednesday, December 28, and 12.45pm on Saturday, December 31.