What is a recommended practice when handling evidence from a crime scene?

Wearing gloves to prevent contamination is indeed a recommended practice when handling evidence from a crime scene. This is crucial for maintaining the integrity of the evidence. Human skin can transfer oils, dirt, and other contaminants to the evidence, which could compromise its value in an investigation. By using gloves, technicians can minimize the risk of altering or contaminating the evidence, ensuring that it remains as untainted as possible for analysis and legal proceedings.

Additionally, wearing gloves protects the technician from potentially harmful substances that might be present at a crime scene, such as biological materials or hazardous materials. Maintaining a sterile environment is essential for accurate forensic examination and preserving the chain of custody, which is vital for the legal process.