The aim of the operation was to check that all rickshaws in the city were compliant with roadworthiness, including having proper lighting.
Officers were also checking if rickshaws had electric motors, which, depending on the kilowatt output, could require road tax.
Social Welfare officers were also investigating complaints that some rickshaw drivers were in receipt of welfare payments while working.
Local Fine Gael Councillor Joe Kavanagh, who has campaigned for the removal of rickshaws, said:
“It is a step in the right direction in relation to the regulation of these rickshaws.
“I’m delighted to see the law is being applied on a level playing field for everyone. For too long these rickshaw drivers have been ignored while blatantly flouting the law.
“People have been allowed to operate a business with these rickshaws which are uninsured, untaxed and are often seen breaking the rules of the road.”
Mr Kavanagh said rickshaws are a public safety concern.