Speed enforcement operations, aimed specifically at class restricted vehicles, will be carried out on the main national speed limit roads across Devon and Cornwall.

A vehicle's class determines the speed at which it can be driven on roads subject to the national speed limit.

Latest data, released by the Department for Transport showed that, despite being class restricted, light goods vehicles (LGVs) had the highest average speed of all vehicles on motorways and dual carriageways in free-flowing conditions.

These vehicles, such as the Ford Transit or the Mercedes-Benz Sprinter, are restricted to a legal maximum of 50mph on a single carriageway and 60mph on a dual carriageway.

In addition, organisations with more than one company vehicle detected may be subject to follow up investigation to see whether the violations detected indicate an organisational culture of non-compliance with road traffic legislation.

Intelligence gathered from these operations will be used to deliver further similar exercises and will include specific tactics to tackle persistent and extreme violators.