How to check if there are any open cases against the person in the UAE

Hi,

My friend owns a business in Dubai but four months ago he left to Pakistan due to an urgent matter.

Now he wants to come back here but he had some unsettled matters here and he just wants to confirm if there is any legal case or complaint registered against his name. Just to avoid any surprises on arrival in UAE like being detained at the airport etc. He wants to be prepared.