1 As UAE residence visas are only valid for 1 or 3 years at a time, many expats obviously end up with a UAE driving licence that still appears to be valid after cancelling their UAE residence visa. 2  Popular belief was that a UAE driving licence was only valid for non-nationals as long as the residence visa was valid. As UAE residence visas are only valid for 1 or 3 years at a time, many expats obviously end up with a UAE driving licence that still appears to be valid after cancelling their UAE residence visa. 2  Popular belief was that a UAE driving licence was only valid for non-nationals as long as the residence visa was valid.
Definition of Witness. What is a Witness. In legal matters, a witness is an individual who has knowledge relevant to the case, but may also be someone who claims to have, or who is thought by others to have, such knowledge.
A material witness is an individual who contains information material to a criminal proceeding. With the authority of 18 U.S.C. Â§ 3144, the United States government can seek a warrant from a judicial officer in order to arrest a material witness.