What search pattern involves investigators moving in straight lines from the center to the boundary or vice versa?

The wheel or ray search pattern involves investigators moving in straight lines from a central point outwards to the periphery or from the edge inward to the center. This method is particularly effective in confined areas or scenes where the central point contains significant evidence. Investigators can cover a circular area thoroughly by systematically progressing outward or inward, ensuring no area is overlooked.

The distinct nature of this pattern allows for an organized approach, making it easier to document where evidence was found relative to the central point. It also minimizes the risk of re-examination of areas, thus increasing efficiency during the search.

In contrast, other methods such as the grid search involve overlapping straight lines in a crisscross fashion, the spiral method entails moving outward in a continuous circular motion without a defined start or end point, and the zone search divides the area into sections for individual searches. Each of these methods has its own application and strengths depending on the search environment, but for a search starting from a central point, the wheel or ray pattern is specifically designed for that purpose.