By Nick Horner & Paul Greaves A drug dealer has been handed an ‘all-inclusive’ experience at His Majesty’s pleasure after being stopped with his girlfriend at the airport trying to escape for a holiday in Mexico. Mohammed Sheikh and his girlfriend Sapphire Edwards were involved in County Lines drugs operations selling heroin and crack cocaine to users. Sheikh, 28, was found to be the man behind the major drug plot. His girlfriend was linked to the network following a police investigation. The couple attempted to flee to Cancun for a break on the drug profits in May last year but were stopped a…