Which one of the following does not form a method of search for clues at scene of crime?

In forensic science and criminal investigation, there are several standardized patterns used to systematically search a crime scene for physical evidence. The most commonly recognized methods include:

• Spiral method: The searcher moves in an inward or outward circular path.
• Strip (or Line) method: Searchers move in parallel lanes across the scene, commonly used for large outdoor areas.
• Grid method: A more thorough version of the strip method where the area is searched in one direction and then repeated at a 90-degree angle.
• Wheel (or Ray) method: Searchers move from the center of a circular scene outward along radii (spokes).
• Zone (or Quadrant) method: The scene is divided into smaller sectors or blocks for individual searching.

While the Grid method is sometimes descriptively referred to as a "crisscross" pattern, "Crisscross method" is not the formal technical name for a distinct search method in standard forensic manuals (such as those published by the FBI or the National Institute of Justice).