Fall arrest provides maximum freedom of movement for a worker. However, in doing so it also enables the worker to reach a position where a fall from height could occur. In the event of a fall, the safety system works to catch them and minimise the distance of the fall. Fall restraint works, when used correctly, by preventing a worker from getting into a position where a fall from height is possible. This can be accomplished in different ways. The most common way is through the use of a fixed-length lanyard attached to an anchorage point. The length of the lanyard is selected to be such that it does not allow the worker to reach a fall hazard.