Fixed or immovable evidence cannot be removed from the scene because of its size,
shape, and makeup.
This type of evidence would include stationary or fixed
objects, or objects too large to be moved.
The chain for custody begins the moment the evidence is collected, and continues
until the evidence is disposed of.
This procedure assures continuous
accountability. It is a chronological record of individuals who have had custody
of the evidence.
Identifying and Marking Requirements
The investigator must carefully evaluate objects, circumstances, and conditions at
the scene of the crime to determine whether or not they serve as evidence.
investigator relies on good judgement, common sense, and past experience to support
If doubt exists as to the value of any piece of evidence, the evidence is secured
and processed until further evaluation can determine its value.
A good investigator develops the habit of marking and tagging evidence promptly.
This is done to identify the evidence at a later date.
The person who first assumes custody of the evidence marks it by inscribing his
initials and the military date and time directly on each item.
should be exercised when deciding where to mark the items. Consideration as to how
an item may have been handled during the crime should be given while handling it.
Sometimes the markings should be inconspicuously placed.
This is true when the
evidence recovered is stolen property and will eventually be returned to its owner.
Items that cannot be marked without marring are placed in suitable containers and
sealed. Both the container and the cover are marked for identification. Evidence
such as hair, soil, and fluids are also handled in this manner.
surfaces and ink for other items.
Tagging further helps the investigator to identify the evidence. A special tag, DA
Form 4002, is used.
The tag contains the document number, sequence number, and
item number, along With an area for remarks. The tag is attached to the item or