I WOULD NOT WASTE A MOMENTS THOUGHT ON THIS!
Emirates could care less about something that happened 18 years ago. If you have an ATPL and 4000 hours, then your regulatory agency has passed you ( suitable character and all that) and so will Emirates and the GCAA. Emirates does not do criminal checks, only references. And Emirates gets you your visa.
Hats off though for being married to the same wife for 17-18 years after the start you guys had. Quite an achievement.