This can be done by helping unit commanders and provost marshals in
their training programs.
b. The following is a general sequence of events in the procedures to be
followed at a crime scene. These procedures apply to, and should be followed
by MPs as well as CID special agents.
(1) Make an estimate of the situation based on your observations of the
(2) Determine if any persons need medical attention.
arrange for medical attention, if required.
(3) If the offender can be identified at the scene, apprehend him.
(4) Record the date, arrival time, and weather conditions.
this is done first as the MP nears the scene.
(5) If the scene is not fully protected, take positive steps to do so.
You should consult the first MP on the scene to determine how the scene is
(a) It may be necessary to require traffic rerouting and to bar entry
Other action to prevent disturbance of the scene may be
(b) Action must be taken to protect evidence which may be destroyed,
altered, or contaminated by the elements.
(6) Determine and record the names and addresses of witnesses. As far
as possible, keep witnesses separated. Try to prevent any discussion between
them regarding the crime.
(7) Conduct preliminary questioning of witnesses and victims to
determine the general extent of the incident or crime.
Try to identify
suspects for later questioning by either MPI or CID personnel. Listen to the
remarks made by others in the area without appearing to do so.
(8) Note the names of all persons officially present at the scene.
Protecting the Crime Scene.
a. The best physical evidence will usually be found at or near the crime
scene. Every care must be taken to preserve the integrity of the scene. This
ensures that evidence is not lost, mutilated, destroyed, altered, rearranged,
concealed, damaged, or removed. The type protection required will depend upon
the location, size, and area of the crime scene. It will depend also on the
types of evidence and the progress of the investigation.
The area may be
secured by one or more of the following:
(1) Roping off the area.