How it works ...
Published 02/06/2010 | 05:00
Irish truck drivers must take a 45-minute break after every 4½ hours worked but want to complete their delivery quickly. In order to beat the clock they are placing a 1½-inch magnet on top of the HGV gearbox. The magnet knocks out the link from the vehicle to the digital tachograph, which is installed in all heavy goods vehicles and coaches and records driving time. The driver does this as he may have returned from six days driving on the continent and must, by law, take two days off. As a result of the magnet, the tachograph shows the truck is "at rest" and not moving, even though it is on the road.