https://www.forbes.com/sites/evangerstmann/2020/07/18/federa...
This is at least partly false. First, you need to be Mirandized before being interviewed. You do not need to be Mirandized at the moment you are being arrested.
“The Miranda warning (from the U.S. Supreme Court's Miranda v. Arizona decision), requires that officers let you know of certain facts after your arrest, before questioning you.”
Second, you can be arrested with reasonable suspicion even if no charges are ultimately brought;
“In the U.S. and its territories, FBI special agents may make arrests for any federal offense committed in their presence or when they have reasonable grounds to believe that the person to be arrested has committed, or is committing, a felony violation of U.S. laws”
Third, you can be legally arrested by plainclothes officers that identify themselves as police. In some jurisdictions you can even be arrested by another citizen.
> because they didn’t put a decal on their vehicle.
Dude do you really see no problem with this? My biggest issue is how do I know if they're actual law enforcement agencies or some thugs? If I were in the situation, I would not know to resist the arrest or to comply because I do not know if they're kidnappers or law enforcers.
I do not have much of a problem if I know they're actual law enforcers. But I can easily see this slipping into worse things like gangs pretending to be law enforcement and kidnapping people.
How are people supposed to record, for the purpose of later review, the actions of a un-identified set of people?