Problems with vehicles can range from overdue maintenance to modifications that may be described as fashion over function. Responsibility for their correction rests principally with the owner and driver. When that fails, it now falls to the police and designated inspection facilities to either nudge or force correction. Depending on the severity of the defects, remedies can range from a simple reminder to a tow truck and seizure of the vehicle license and number plates.

Pre- and post-trip inspections play vital roles in fleet safety and maintenance programs alike, and there is little wonder why. These regular circle checks can uncover emerging mechanical defects long before the issues morph into costly breakdowns, unscheduled downtime, or out-of-service equipment at a roadside scale. Above all, they help to ensure that drivers have the tools to safely perform their jobs.

It is not uncommon for police to stop a defective vehicle and be told "The boss said drive it." The employee is at a disadvantage, he has to drive to keep his job but he is also liable for driving the defective vehicle. While the employee cannot be absolved for the deficiencies, the boss is equally responsible in law.