Password

To log in to find my iphone I need to log in to icloud.

I have had 3 signals so far from my ipad the last being 3 days ago.

I dont believe the police have done a lot in tracking it down or following up on the lead and I do understand they have bigger crimes to solve.

My concern is I changed my iCloud password as I was not happy to keep on having someone else pry on my personal information.

Do I have to give them my password again or is there a way of creating a separate password to icloud for find my password only.

Many thanks