It’s not normal for the FBI or any law enforcement agency to clean a crime scene. Their primary role is to investigate and collect evidence. Once their work is done, the responsibility of cleaning up the scene falls to professional crime scene cleaners, also known as bioremediation specialists or forensic cleaners.
These professionals are trained to safely remove biohazardous materials, such as blood and bodily fluids, and to disinfect the area to ensure it’s safe for future use. This process is crucial to prevent health hazards and to help families and property owners move forward after a traumatic event.
Sources:
https://www.aftermath.com/content/who-cleans-up-murders/
https://www.crimescenecleaning.co/blog/crime-scene-cleanup-101-a-comprehensive-guide/
https://www.mentalfloss.com/posts/misconceptions-about-the-fbi