[giantg2]

"Just on the legal standard: it's probable cause that there's a risk, not probable cause that the risky event will happen. If you have 51% certainty that the subject has a 25% chance of harming themselves or someone else, that is likely to be good enough."

Do you have some citation on that? Frankly, if it's so ill defined that we don't know what level of risk justifies restrictions under the law, then we should all be opposing it as it can be used against anyone. Perhaps you play violent videos and that's enough risk?

"Living with someone who's making violent threats towards you or themselves is no fun at all, even if there's only a 1 in 4 chance that they'll follow through."

There are criminal charges that can be filed against this type of behavior. This does not require a hookie workaround. That's how we end up with things like civil assest forfeiture.