How does SPAD monitor heavy vehicles?

How does SPAD monitor heavy vehicles?

According to the Prime Minister Department, from January 2011 to November, 2012, Malaysia Land Public Transport System (SPAD) conducted 64 operations, inspecting 4,141 heavy vehicles and recording 837 cases. SPAD, Transport Department, the Police and local authorities need to take effective actions against heavy vehicle operators who break the laws, including 10-wheel lorries carrying sand and earth in residential and rural areas. If these operators do not abide by the laws, people are affected, such as injuries and deaths in accidents. The public view the ways the authorities deal with heavy vehicle operators with suspicion.