What should be prioritized when collecting evidence at a crime scene?

The most effective approach when collecting evidence at a crime scene is to prioritize evidence that is least likely to be altered or removed first. This method minimizes the risk of losing critical evidence that could be easily tainted or taken away as the investigation progresses. For instance, physical evidence such as fingerprints, blood samples, or other biological materials may be compromised if contamination occurs.

By focusing on the most fragile and significant pieces of evidence initially, investigators ensure that the integrity of the crime scene is maintained. The success of a criminal investigation often hinges on the quality and reliability of the evidence collected, making it essential to secure the most vulnerable items first. This strategic approach leads to a more thorough and effective investigation, as it preserves key evidence necessary for solving the case.

The other options reflect less effective strategies, such as prioritizing based on value or ease of collection, which may overlook vital evidence that requires immediate attention. This highlights the importance of a systematic approach to evidence collection that prioritizes preservation over convenience.