Ok, Arniegang,
If you came back without residancy, you can use either the UAE one of the UK one.
If you came on Residancy visa, they "by law" you should use the UAE one.
Back to my problem,
I have checked today and now i got 3 tickets, last one was sunday when i posted and knew about this issue.
The 3 fines are in the morning going to work in Umm Suqqim road, which is the one between Al Khail road and Emirates road that connects them on the Arabian ranches octupus flyover.
It turned out that this road speed is 80kph and i may have been doing 140 thinking it is 120kph road. and as the new radars doesn't flash in the morning, i only knew about it after 2 weeks when i did all the 3 offences.
I'll go there and check if there is a sign saying it is 80 or not, and then will go to the traffic department on Saturday if i got contacts or not and try my best with the chief.
wish me luck