I assume that the original comment was about how someone can get could pretty much red-handed for battery and assault/home violence but then instead of getting put into pre-trial/provisional detention (yes, you can get locked up even before being judged guilty, outrageous), they are just allowed to go because eh, why bother.

When you say "just allowed to go", you mean until the trial, right?

Because otherwise we're talking about completely different scenarios.

But if there is still a trial I don't see how "why bother" makes sense...