Why does the issuing authority matter?
Because a certificate only speaks for the jurisdiction that issued it. Dubai Police can confirm your record in Dubai; they cannot speak for Abu Dhabi, or for the country you lived in before moving here.
An employer asking for clearance covering five years of your life may need certificates from more than one place, and that is worth establishing before you start.
- Each authority covers its own jurisdiction
- Other emirates issue their own
- Time abroad needs a certificate from there
- Multi-country histories need multiple certificates