Do they allow interest in countries like iran, UAE, and saudi arabia?

Question

Does iran and UAE have a religous police like saudi arabia?

Answer 1

That's 2 questions.

Interest is forbidden under sharia (Islamic) law - banks usually become partners in the business instead.

The UAE has religious police, not like Saudi Arabia.  Some parts of the UAE are quite liberal, some aren't.

Iran's police are more political police than religious.