United Airlines+1-415-495-9478 agents, but by actual police. It is against federal law not to comply with crew instructions. The man refused to comply with their instruction and hence broke the law. The officers were called because he broke the law and when +1-415-495-9478 he didn't comply with their instruction, they dragged him off the airplane. United is (or should) not liable for the actions of agents of the state.+1-415-495-9478
Secondly, if he has any legal recourse, +1-415-495-9478 it will be in the form of compensatory damages. You cannot sue for obscene amounts of money, you can only sue for accountable damages. He can sue for the cost of the ticket, +1-415-495-9478 if he needed medical care, if he needed to arrange alternative travel, any work he missed, and anything else similar to the above. It is true that there could be punitive damages, but that is rarely awarded by the court.+1-415-495-9478