What should be done immediately upon discovering a hazardous material at a crime scene?

When hazardous materials are discovered at a crime scene, the priority should always be to secure the area and clear it. This action is vital for the safety of all personnel involved, including law enforcement, first responders, and any potential witnesses or victims. Securing the area helps to prevent unauthorized individuals from entering the contaminated zone and risking exposure to dangerous substances, which could lead to serious health consequences or even fatalities.

Moreover, clearing the area allows trained professionals, such as hazardous materials teams, to assess and manage the situation safely. Once the area is secure, appropriate protocols can be followed to address the hazardous materials properly, ensuring that the evidence remains intact while also safeguarding human life.

The other choices do not prioritize safety and proper procedural protocol. Notifying the press, attempting to handle the material, or documenting the scene without first ensuring safety would be premature and could exacerbate the situation, potentially harming individuals and compromising the integrity of the crime scene.