What must police officers demonstrate when using powers of arrest?

Police officers must demonstrate that they have reasonable grounds to suspect an offense when exercising their powers of arrest. This requirement is a crucial aspect of the legal framework surrounding police powers, ensuring that arrests are not arbitrary and are rooted in a legitimate basis. Reasonable grounds mean that the officer must have a factual basis for their suspicion, which could be established through observation, information received, or the broader context of the situation. This standard serves to protect individuals from unjustified detention and aligns with principles of lawful policing.

The focus on reasonable grounds highlights the importance of providing a foundation for police action that is measured and justified, rather than reliant on subjective feelings or unsubstantiated judgments. This maintains the balance between effective law enforcement and the rights of citizens.