Illinois Law Enforcement Training and Standards Board (ILETSB) Practice Exam

When collecting evidence at a crime scene, where should you begin your search?

1. At the exit point

2. At the area of impact

3. At the perimeter fence

4. At the nearest road

The correct answer is: At the area of impact

Beginning the search for evidence at the area of impact is essential because this location typically contains the most relevant and significant evidence related to the crime. The area of impact is where the crime occurred or where the first signs of the crime can be observed. Evidence collected from this area can include physical signs, biological materials, or items that pertain directly to the occurrence of the crime, which are crucial for investigation and prosecution. Searching the area of impact first helps investigators to preserve potential evidence from being disturbed or contaminated and allows them to establish a thorough understanding of how the crime may have been committed. This can lead to vital leads and corroboration for witness accounts or other evidence collected later. The other options suggest starting points that are less effective in gathering critical evidence. For example, beginning at the exit point may overlook significant details at the crime scene. Searching from the perimeter or nearest road may miss pertinent evidence that exists closer to the area where the crime was executed. This method would also increase the risk of losing valuable information that should be documented immediately. Collecting evidence effectively involves a systematic and prioritized approach, making the area of impact the most logical starting point.