But within the last few years there has been a lot of "investigation by police and other enforcement agencies" that believe Poker Runs are some type of illegal gambling by "biker gangs".
Damn, the cops are running out of real crime again.

The PD's are just enforcing what the Gaming Commission is considering Gambling and they want their percentage just like they get from the Casino's.
Some Attorney General got a cob up his backside and decided it was gambling and time for the Gaming Commission to collect.
It has nothing to do with biker gangs.