^ You underestimate them. And even if you got the number, then what?
Give it to the police to do their job. Maybe they do change phones, maybe they don't. There's no way of knowing without phoning it, for which you need their number.
@Wicksie started
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Give it to the police to do their job. Maybe they do change phones, maybe they don't. There's no way of knowing without phoning it, for which you need their number.