Naas Roads Policing Unit found that a vehicle had been untaxed for 825 days.
The vehicle was stopped as part of a traffic checkpoint.
Meanwhile the Unit was operated a speeding checkpoint on the N7 when it detected a car travelling at 130KM/H in a 100 zone.
The driver failed a roadside drug test.
A fine was issued for speeding and a court appearance may follow for driving over the legal limit.
Elsewhere a car was stopped being driven by unaccompanied learner with no L-plates displayed.
A fine was issued and the car was impounded.
Local gardaí were operating Covid checkpoints throughout Co Kildare at the weekend and reported high compliance with public health regulations.