What is the purpose of an arrest warrant?

The purpose of an arrest warrant is to provide legal authorization for law enforcement to apprehend an individual suspected of committing a crime. An arrest warrant is typically issued by a judge or magistrate based on evidence presented by law enforcement, showing probable cause that the individual has engaged in criminal activity. This legal framework is crucial because it protects individuals' rights by ensuring that the government cannot simply detain someone without sufficient justification.

In contrast, the other options pertain to different types of legal authority. Searching a residence for evidence generally requires a search warrant, which has its own criteria and process. The inspection of vehicles and conducting traffic stops fall under different legal standards and do not inherently require an arrest warrant, as they can be executed based on reasonable suspicion or probable cause for a traffic violation. Thus, the focus of an arrest warrant is specifically on the authority to apprehend a suspect, aligning with the correct answer.