What might police need to do to prevent the fabrication of evidence?

To prevent the fabrication of evidence, preserving physical evidence at the crime scene is crucial. This action ensures that all evidence remains intact and uncontaminated, which is fundamental for maintaining the integrity of the investigation. Physical evidence can include items such as weapons, clothing, or any objects that may have been involved in the crime. By securing this evidence as soon as possible, police can ensure that it accurately represents the scene as it was found, thus preventing any tampering or alteration that could undermine the investigation and subsequent legal proceedings.

Recording interviews with suspects is also important for ensuring accurate accounts, while creating a secure evidence locker helps safeguard evidence once collected. However, these measures do not directly address the preservation of the initial evidence at the crime scene, which is a critical step in preventing any potential fabrication. Altering testimonies is not acceptable and clearly undermines the pursuit of justice.