Which of the following is NOT one of the crime scene search patterns?

The reason "Radar" is the correct answer is that it does not represent an established crime scene search pattern. Crime scene search patterns are methods used by investigators to systematically search an area for evidence, and they include techniques such as the circle or spiral pattern, strip or line pattern, and grid pattern.

The circle or spiral pattern involves starting from the center of the crime scene and moving outward in a circular motion, or vice versa, ensuring that the entire area is covered. The strip or line pattern consists of moving in straight lines across the scene, usually in parallel lines, which is effective for large outdoor areas. The grid pattern combines two perpendicular strip searches and is useful for thorough visual examination.

In contrast, "Radar" does not align with these recognized methods. It refers to a technology used for detection and ranging, not a method for physically searching a crime scene.