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Criteria to justify a helmet law

See also this related commentary:    How much are helmet laws justified?

It is not the tradition in western democracies to introduce laws without good evidence that they are necessary, that they are the best solution to a proven problem and that they would be likely to result in their intended consequence. This should apply to cycle helmet laws as any other.

To establish a need for a cycle helmet law:

To ensure that a helmet law is the best solution, the following criteria - put forward by Unwin 1996 - must be met:

To establish that a law would be likely to result in its intended consequence:

References

Unwin 1996

Unwin NC, 1996. Cycle helmets when is legislation justified?. J Med Ethics 1996 Feb;22(1):41-5.

See also