The same way every other enforcement action is taken: observation and investigation.
This is not a "check for tags" situation this is a "homeowner reported their back window getting shot out and we are investigating hunters in the area" or a "sow with cubs was killed and we think the hunter took a long shot" or "a forky was killed in a 4 point unit" or "a livestock owner reported a wounded animal" type of enforcement tool.
The whole point of a qualification standard is that it would reduce the negative outcomes of long-range misses and wound loss. Hunters can leave a lot of evidence behind, and witness testimony comes into play.
This would be no different than units that require additional qualification standards for identifying game animals or states that mandate certain identification regulations in their hunter ed training and testing.
For instance there is a goose hunting requirement in my state where you have to take a specific test to identify the different kinds of geese because some are endangered and others are fair game. There are states that require archery qualifications for concerns of wound loss which effects forecasting models for tags.
So, say I've been tested and certified etc to "legally take a 425 yard shot on elk,
( which obviously I will have to have been tested and certified for different species
as well as different sized animals within the same species, unless this is just going to be another bureaucratic cluster&@^K ...<redundant) )
So, someone makes a claim I "made a long shot". Does that person know what ranges I'm
certified at? Does that person know the exact distance the shot was taken at? Or exactly where the
shot was taken from ( I pick up my brass). Or exactly where the animal was standing when I shot?
Do you really think it's a valuable expenditure of my tax
$$$ to even investigate something as ridiculous as
this, not to mention the cost of my tax$$$ to implement such a "plan"?
The whole concept is just a bunch of mental masturbation that anyone with a lick of common
sense who isn't on the government dole wouldn't even consider actually trying to implement, let
alone seriously suggest, outside of a campfire with close friends and after at least a dozen beers on an empty stomach.