Hi
Below is the information.
Saudi Arabia
Police Certificate needed?
Yes. However, certificates are available only to current residents and past legal residents.
How to get one?
Your immigration processing office will give you a request letter. Please contact your immigration processing office if you have questions about this.
Local Requests
If your application is being processed at the Canadian High Commission in London, you are not required to obtain a police certificate until the London visa office sends you a police certificate request letter with instructions on how to apply.
If you are applying at the Canadian Embassy in Abu Dhabi, UAE, you should submit the police certificate with your application. You can contact the visa office for a request letter at fax: (971 2) 694-0396 or e-mail: abu-dhabi-im-enquiry@international.gc.ca. If you have an immigration file number, please include it in your correspondence.
For applications being processed at any other office, request letters may be obtained by e‑mail: riyadh.visa@international.gc.ca or fax: 966-1-488-9657. Please include the file number, the office where you applied and your mailing address.
The police certificate request letter will be sent to you by mail. You must present this letter, along with valid identification and proof of legal residency in Saudi Arabia to the Ministry of Foreign Affairs. If they approve you, you must then apply for the police certificate in person at the relevant police headquarters.
Cheers
Saki