The public must have the perception they will be caught by police and receive a penalty if not wearing a seat-belt. This is achieved through enforcement campaigns that are:
– highly visible, through the use of strategically located checkpoints.
– repeated, so that there is a perception that it is possible to be caught anywhere at anytime.
– conducted in a widespread way to create the impression that people can be detected anywhere at anytime.
– enforced consistently with penalties that are appropriate for the country and always applied to anyone not wearing a seat-belt.
– well-publicized before, during and after.
Source: GRSP Seat-Belts Fact Sheet