I believe they're using it in the political philosophy sense: https://en.m.wikipedia.org/wiki/Monopoly_on_violence

Violence includes any coercive act, such as fines. Ultimately they're backed by the threat of force since the state will take the fine without your consent if it gets that far.

These types of Laws are a guidebook for when and how the state uses violence in whatever capacity, and the procedures around legitimizing it.