What is one of the first steps in a preliminary investigation?

The first step in a preliminary investigation is data collection. This phase is critical because it involves gathering all relevant information and evidence that will inform the later stages of the investigation. Effective data collection can include documenting the scene, interviewing witnesses, and collecting samples or other materials that may be relevant to understanding the incident.

By starting with data collection, responders can lay a solid foundation for the investigation, ensuring that all pertinent facts and evidence are accounted for. This step is essential to avoid overlooking important details that could influence the outcomes of subsequent analyses and legal processes. Following this, other components such as analysis, legal reporting, and public notification may occur, but their effectiveness hinges on the thoroughness of initial data collection.