Which of the following is an example of exigent circumstances for searches?

The correct response highlights the principle of exigent circumstances, which allows law enforcement to conduct a search without a warrant when there is an urgent need to act to prevent imminent harm, destruction of evidence, or a suspect escaping. In this context, the immediate pursuit of a fleeing suspect exemplifies this legal doctrine. When an officer is actively chasing a suspect who is attempting to evade arrest, there is a heightened risk that the suspect might destroy evidence or pose a threat to public safety. This scenario justifies bypassing the usual warrant requirement.

The other choices do not meet the criteria for exigent circumstances. Prior knowledge of criminal behavior does not constitute an emergency that justifies an immediate search. The presence of family members might raise concerns about privacy but does not create an urgent situation requiring a search without a warrant. Conducting a standard traffic stop is a routine procedure and does not inherently involve the kind of immediate threat that would allow for exigent action. Therefore, only the immediate pursuit of a fleeing suspect aligns with the exigent circumstances exception in search law.