Why might a duty manager call the police when enforcing a trespass notice?

Calling the police when enforcing a trespass notice is primarily about leveraging the police's specialized training and resources. Police officers have legal authority and the expertise to handle situations that involve potential criminal behavior, such as trespassing. They are trained to de-escalate situations and can ensure that the enforcement of the notice is carried out legally and safely. Their involvement can help prevent potential confrontations that might escalate beyond verbal communication.

In this scenario, their presence not only legitimizes the enforcement of the trespass notice but also provides a layer of security for those managing the premises, which can be crucial in tense situations. Having trained personnel who can deal with any resistance or complications is essential to maintain safety and order.