Which of the following describes the techniques used to search an area after establishing its boundaries?

The answer is best captured by the term that describes the systematic approaches used to examine an area after its boundaries have been defined. In this context, "crime scene patterns" refers to established methodologies employed to efficiently search designated areas for evidence. These patterns, such as grids, zones, or spirals, ensure that the search is thorough and systematic, allowing investigators to effectively find, document, and collect evidence while minimizing the risk of overlooking critical findings.

Utilizing crime scene patterns is vital in maintaining the integrity of a search and ensuring that all areas are covered without duplication or omission. Each pattern has its advantages depending on the type of scene and the resources available, which underscores its importance in investigative procedures.

In contrast, the other terms provided refer to broader concepts or specific processes that do not solely focus on the searching technique itself. Search protocols and investigation methods can encompass a range of procedures beyond area search techniques, while evidence collection techniques are specifically about how to physically gather and preserve evidence rather than the search patterns used beforehand.