Number plate recognition technology used Island-wide
Fifty-four people have been caught paying no, or the wrong, vehicle duty since new cameras were introduced in May.
The Department of Infrastructure says the automatic number plate recognition technology will continue to be used at various locations around the Island.
Registration numbers are checked against a central database.
According to the DoI, 80 per cent of claims have been settled already, with those who haven't paid being taken to court.
It adds that there have been high rates of non-payment outside Douglas, after the cameras were used in Castletown, Douglas, Jurby, Peel, Port Erin and Ramsey, so those areas will continue to be targeted.