What is the proper response upon discovering a clandestine lab?

The proper response upon discovering a clandestine lab is to refrain from touching or smelling anything. Clandestine labs can contain hazardous materials, chemicals, or substances that may pose significant health risks, including toxic fumes or explosive agents. By not touching anything, you reduce the risk of contamination, exposure, or accidental ignition.

Additionally, this response is aligned with best practices for safety and preservation of evidence within law enforcement. Maintaining the integrity of the scene is crucial for any subsequent investigation. The individuals who discover the lab should prioritize their safety and the safety of others while ensuring that trained professionals can assess the situation appropriately.

In terms of the other responses, notifying curious onlookers can introduce unnecessary risk and distractions, immediately entering to assess the situation can lead to exposure to dangerous substances, and waiting for backup is an important step but should only follow after ensuring that the area is secured and dangers identified.