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I feel like that's a dangerous thing to presume.
It seems like the only reasonable circumstance in which you can end up in gaol as a result of brakelessness.
In case you're new here, I'm on record many times as recommending 2 brakes on fixie bikes wherever possible. The OP is a bell end for riding brakeless, and everything he has posted in here confirms it, from self delusion about his mad skillz to a fundamental failure to understand physics as it applies to bicycles.
Only if you injure somebody. We all know you can go to gaol for that, but the OP is asking a different question; what is the legal consequence of getting caught riding brakeless if that's all they've got on you?