Before crime scene cleanup teams are even allowed to begin their work, police investigation teams do a thorough investigation of the scene, bagging and tagging all evidence. Professional technicians make sure to preserve all evidence and any other relevant information while providing scene remediation services.
For example, after a successful convenience store robbery, the robber escaped to his vehicle and drove away as the injured clerk, losing blood, alerted the police. Emergency response teams arrived at the store in minutes and quickly ordered an ambulance to take the clerk for medical help. The store clerk who was injured was able give detailed descriptions to police detectives. Police were also able review surveillance videotape. blood cleanup
After a thorough examination of the crime scene by the CSI team, a professional clean up company, called in by the police, begin to clean the mess left by the robbery. As they were cleaning the area by the counter, one of the technicians noticed a small speck of blood that had been missed by the police as it was so small. Apparently, the robber had scratched himself on a metal appendage attached to the counter when he drew his gun.
The discovery was made known to police detectives. One of the cleanup technicians showed it to the police. As this company frequently conducts suicide scene, meth lab, odor removal and other death scene cleanups as well as blood and trauma scene cleanups, they have experience working with police and identifying substances.
The blood was tested for DNA by the police and the samples were compared to those in the county jail. The photo of a previous defendant that matched the one in the video footage from the convenience store was used to identify him. The courthouse located the address of the victim and arrested and convicted him.
Although this isn’t a common occurrence it is a requirement for trauma scene remediation work. Attention to detail is a primary qualification. It is not the same as janitorial services. The job of professional biohazard cleaners is to eliminate potential hazards from blood and bodily fluids wherever they land. These cleanup teams must be thorough and attentive to all details. However, if it a source of great pride whenever something like this happens and the team is able to assist the police in their investigation.