What is the initial step in a crime scene investigation?

The initial step in a crime scene investigation is the preliminary scene survey. This phase is crucial because it allows investigators to assess the scene, establish boundaries, and determine the overall situation before any detailed work begins. During this survey, investigators can identify potential evidence, understand the layout of the scene, and formulate a plan for further investigation.

Conducting a preliminary scene survey helps ensure that crucial evidence is not overlooked and provides context for subsequent actions. This step is fundamental in setting the stage for more detailed processes like evidence collection, which follows the initial assessment. Gathering witness statements and submitting evidence for analysis are also important aspects of the investigation, but they come after the scene has been thoroughly surveyed and assessed.