Who has the authority to remove someone from a licensed premises if they are associated with gang activity?

The correct choice is based on the fact that law enforcement has the official authority to intervene in situations involving criminal activity, including gang-related issues. The police are trained and empowered to enforce the law, which includes the authority to remove individuals from licensed premises when there is a threat to public safety or if there are breaches of the law. Their role is to maintain order and ensure the safety of the public.

While owners and management might have the ability to ask someone to leave based on the establishment's policies, they do not possess the same authority as law enforcement when it comes to legal enforcement. Other customers cannot remove someone on the basis of criminal activity, as they lack the legal grounds to do so. Thus, the police play a crucial role in these scenarios, ensuring that any actions taken are in accordance with legal procedures.