Let’s say a person is found murdered in their home

Let’s say a person is found murdered in their home. We have on scene first responding officers and medical personnel, crime scene, homicide detectives, and then medical examiner. Who calls the shots??? Who should call the shots??? Does the command structure change through the investigation?
How important do you feel impression evidence can be now that DNA evidence is available?
500 words

view chapters 1-2 in your textbook and use these power points to help. We begin by discussing physical evidence. Please give examples and include the difference between class and individual characteristics and how Locard’s Exchange Principle applies here.