Scrutineers are responsible for checking the mechanical state of competing vehicles in terms of compliance with the regulations – ensuring fair play – and general safety.
They are also responsible for environmental aspects such as noise control. Scrutineers can specialise in cars, karts, environmental, or any combination of these.
While experience in engineering or a similar technical field is usually an advantage, it is not essential. 
Whilst scruitineers undertake a level of checking appropriate to the type of event they can not check every item, and the ultimate responsibility for the safety and compliance of the competing vehicle remains with the competitor.
Scrutineers can begin training from the age of 16 and are eligible to qualify as fully licensed Scrutineers once they turn 18.
All training for Scrutineers is conducted via modular training programmes; they begin as Trainee Scrutineers and subsequently undertake further modules to progress through the different grades and/or disciplines.
Training is carried out under the guidance of senior Scrutineers, who act as mentors throughout the training period.