When can police ensure an individual's presence at court proceedings through arrest?

The correct context for ensuring an individual's presence at court proceedings through arrest is when a warrant is issued. A warrant, issued by a judge or magistrate, provides the legal authority to arrest an individual and bring them to court. This is essential for maintaining judicial processes and ensuring that individuals who are required to appear before the court do so. When a warrant is present, it is based on specific legal grounds such as evidence of a crime or failure to comply with a previous court order.

The other circumstances listed may contribute to the decision-making process surrounding police actions or an individual's compliance but do not alone provide the clear legal foundation that a warrant does. While prior arrests or convictions may suggest a pattern of behavior, they do not, by themselves, justify an arrest to ensure attendance at court proceedings. Similarly, while assessing whether an individual poses a flight risk is a factor in some contexts, it is not sufficient for the police to proceed with an arrest without an underlying warrant stemming from due legal process.