What search method involves investigators walking in straight lines across the crime scene?

The chosen method of Line Search involves investigators moving in straight lines across the crime scene, typically spaced apart to ensure thorough coverage. This technique is especially effective in open areas where the layout allows for straight-line movement. By walking in lines, investigators can systematically cover the area, making it easier to spot evidence, control for contamination, and ensure that no parts of the crime scene are missed. The simplicity of the line pattern helps in maintaining a consistent approach throughout the search.

In contrast, other methods such as Zone Search divide the crime scene into specific sections, which may not lend themselves to straight-line searching, while the Spiral Search involves circling inward or outward from a central point, and the Grid Search uses overlapping lines to create a grid pattern. Each of these has its place but does not specifically focus on the straight-line approach that defines the Line Search.