The legal way to access the bank account of late father

Dear Sir/Madam,

My name is R. A. K. s/o A. K., Pakistani national, currently working here in Riyadh- KSA in an office admin position.

We need your cooperation regarding my late father (Mr A. K.) bank account matter. My father died in the UAE on 31 Oct 2012, because of a heart attack.

We received his documents which show us that he had a business in scrap and a bank account in the UAE in a bank, and that account he used and issued cheques to some companies which is a million UAE dirhams.

We just want to check his account details/all statements to know further about his business and account amount. I have all the documents including birth certificate.

Kindly requiring your advice.

Thank you.