I am of the opinion that taking of private property should only be allowed subsequent to a court order of incompetence or imprisonment.
Securing of property (different from taking) on a temporary basis should only be allowed as part of an arrest or confinement due to mental issue and only if there is a path to restore that property after adjudication (see above). The property should be returned AUTOMATICALLY if there is no criminal or commitment proceedings.
Re: #8. Thoughtful comments.