If the Last Known Position has a high degree of accuracy, the search area is small and a concentrated search is desirable. Which pattern is desirable?

• A. Line Search
• B. Expanding Square
• C. Square Search
• D. Circular Search

Answer: (C)

When the last known position is highly accurate and the area to search is small, you want a pattern that keeps the search tight around that point and covers the zone methodically. A square search achieves this by centering on the last known position and using nested square patterns to sweep the surrounding area. This concentrates effort near the center, minimizes travel away from the known location, and provides dense coverage so you won’t miss a target within the small defined boundary.

In contrast, a line search is more suited to long, narrow corridors or coastlines; an expanding square starts small and then grows outward, which is useful when you don’t know how far to search; and a circular search covers a circular area but is less efficient for a small, square- or point-centered search around a precise position.