“If it wears a vest; you must arrest.”
First off I never said that.
In my own words, I would say if you show up at a meeting which could turn into a shootout between two rival biker gangs/clubs/groups/factions, wearing vests like they do, do not be surprised if you are caught up in the entire episode.
I have zero problems with motorcycle enthusiasts, of all law abiding non-violent types. I have known and know several of them. Even knew some true 1% back a few decades, including one who was killed over a drug deal in 1970 in Westminster CA.
Still know his wife. And 45 years later, she will probably claim she knew nothing about the drugs.
I’ll go one further. Don’t be surprised to find your insurance rates go up when you start riding a bike. It’s still not probable cause to arrest someone and hold them on $1,000,000 bail.