Why do the Public services have to preserve the scene?

§It is important for the emergency services to preserve a incident scene for many reasons:-

§So an investigation can be carried out into why the incident has taken place.

§If evidence is lost, then the police will not be able to prosecute the person who was at fault in the incident.

§You don’t want the emergency services touching the scene because, if it is a crime scene and people from the emergency services are touching the evidence then their DNA will be on the crime scene., and the forensic scientists will not be able to investigate who committed the crime.

§The way the police preserve a incident scene :-

§They close of the area in which the accident has occurred.

§They preserve any vital evidence which they may be able to use as evidence in court. They may do this by putting the evidence into special bags.