Also in Australia most / ?all? state police detectives carry General Search warrants, which allow them to search your property and person without applying to a court on 'reasonable suspicion' -whatever that means. I'm not sure if they have to arrest you first, but that doesn't really matter.

A 'General Search warrant' is a thing that shouldn't even exist, let alone that police detectives should be walking around with them. This is wrong on so many levels.

Wow, why even bother with making them carry "General Search" warrants if they can basically do whatever they want anyways? In the U.S., our police can claim to smell marijuana during a traffic stop and use that as a reason to rip your car apart looking for it.