I only know german law from a short time as a security, but I assume it is quite similar: Cops do not want to be called for every bouncer action. The owner (o

I only know german law from a short time as a security, but I assume it is quite similar: Cops do not want to be called for every bouncer action. The owner (or the one renting the property) has legal rights and set the rules. You break the rules, by beeing somewhere you are not supposed to be - any staff member can act as security to physically remove you. They may not beat you, though. Or otherwise act escalating. But forcefully leading (or carrying) out someone breaking the house rules (by using minimum of violence) is legal and standard procesure on every big event.