Theres what 7 billion people on earth ? Every day about 200,000 more people are born and probably die of age.
I would see that the enforcers arent concerned about individual people who may have MJ card or live in a country where MJ is legal alltogether .
They would have to go throught all the members of the board and check theyr viability from a database. unlikely so guys dont worry and be happy i feel pretty safe being just 1 person in 7 billion
(ps.CSI style image enchancement technology is fiction)