What is an important practice to remember when handling evidence?

When handling evidence, it is crucial to avoid disturbing the evidence to prevent DNA transfer. This practice is fundamental in the collection and preservation of evidence, particularly in crime scenes where biological material, such as blood or other bodily fluids, may be present. Disturbing evidence can lead to contamination, which affects its integrity and can compromise investigations. By minimizing interaction with the evidence and employing methods that preserve its original state, investigators increase the likelihood of obtaining reliable forensic results.

Maintaining the integrity of evidence is essential not only for the validity of investigations but also for securing successful prosecutions. Any alteration or contamination can lead to challenges in court regarding the admissibility of the evidence. Therefore, preserving evidence through careful handling is a best practice every officer should adhere to.