Crime scene search patterns are systematic methods to ensure thorough coverage.
Step 1: Analyze the description. The description "from the center of a circle to its radii" suggests a pattern that starts at a central point and moves outwards along straight lines, like the spokes of a wheel.
Step 2: Match description to options.
(1) Spiral Search: Starts at the center and moves in an ever-widening circle, or starts at the perimeter and moves in a contracting circle. This does not involve radii.
(2) Wheel Search (or Radial Search): Investigators start at the center and move outwards along straight lines or "spokes." This perfectly matches the description. It is best used for large, open areas.
(3) Grid Search: A lane search that is conducted in two directions, creating a grid. It's very thorough but doesn't originate from a central point in the described manner.
(4) Zone Search: The scene is divided into zones or quadrants, and each zone is searched separately.
Therefore, the method described is the Wheel search.