Which objective is NOT one of the four key objectives of crime prevention?

The correct choice indicates that "prevent" is not one of the four key objectives of crime prevention, which is a fundamental misunderstanding of the goals associated with crime prevention strategies. In fact, preventing crime is one of the primary objectives; it involves taking proactive measures to stop criminal behavior before it occurs.

The other options—detect, deny, and delay—are integral components of a comprehensive crime prevention approach. Detecting crime involves identifying criminal acts as they happen, which helps law enforcement respond timely and effectively. Denying opportunities for crime focuses on removing or minimizing chances for criminals to commit offenses, often through environmental design or increased security. Delaying a crime could involve measures that slow down or hinder a criminal's ability to successfully complete their act, providing law enforcement more time to respond.

In summary, preventing crime is indeed a core objective of crime prevention, while the options of detecting, denying, and delaying represent complementary strategies that support overall crime prevention efforts.