The **helmet** is a crucial element of **passive safety** for motorcyclists, as it protects the head from blows and serious injuries in the event of an accident. Its function is to distribute the force of the impact and prevent sharp objects from penetrating the head. Additionally, it helps prevent burns on the face and head when sliding on the ground after a fall.

In accident situations, it is essential **not to remove the helmet** from the injured motorcyclist. This is because moving the injured person or removing the helmet can cause sudden movements in the neck, which could worsen existing injuries. The recommendation is to keep the neck protected and avoid any unnecessary manipulation.

Therefore, as a general rule, the helmet should not be removed from an injured motorcyclist, as the helmet is vital for their protection and its removal could worsen their condition.