What are the four levels of police intrusion?

The four levels of police intrusion are critical to understanding the extent of law enforcement's authority in various situations. "Basic questioning" represents the least intrusive level, where officers may approach an individual and ask questions without any requirement for suspicion. The "common law right of inquiry" permits officers to investigate further if they have reasonable suspicion that a crime has occurred, allowing them to engage more deeply without moving into detention.

The "stop and frisk" level occurs when an officer has a reasonable suspicion that a person is involved in criminal activity and may briefly detain them to perform a pat-down for weapons. Lastly, "arrest with probable cause" requires a higher standard of evidence, where law enforcement has reasonable grounds to believe that a crime has been committed and can take the individual into custody.

This progression underscores the varying degrees of intrusion and the corresponding legal standards that govern police conduct. Other options, while they may touch on aspects of police procedure, do not accurately reflect the established legal framework concerning levels of police intrusion.