338 Crime Scene Flashcards
Functions of the Unit Crime Scene Unit (CSU)
Conducts all preliminary evidence gathering at crime scenes in addition to evidence analysis and photography.
The CSU detective receives specialized, in-service, and refresher training in crime scene procedures and evidence processing, to include:
- The recovery of latent fingerprints and palm prints;
- The recovery of foot, tool, and tire impressions;
- The photographing of crime and accident scenes;
- The collecting, preserving, and transmitting of physical evidence, including biological material; and
- The recording and sketching of crime or accident scenes.
When to call a CSU detective to the scene:
a. All aggravated batteries;
b. Animal Bites
(1) The on-duty Canine Unit supervisor will photograph Jacksonville Sheriff’s Office (JSO) canine apprehension bites. In the event a Canine supervisor is not available, the sector police supervisor will respond to photograph the incident.
(2) A CSU detective will be called in cases where a criminal investigation will be conducted in reference to an animal bite, or when someone sustains life-threatening injuries resulting from an animal bite.
c. Arson – Only when a death or life-threatening injury is involved, or when a State Fire Marshal requests a response;
d. Auto Theft – When there is evidence that the vehicle was used in the commission of a violent felony crime or when requested by a supervisor based on a known pattern, series, or trend;
e. Battery
(1) All domestic violence when there is visible injury;
(2) In a correctional facility when there is visible injury;
(3) To a law enforcement officer when there is visible injury; or
(4) When a suspect is in custody and there is visible injury to the victim.
Burglary to a residence or a business
Burglary to a vehicle – When evidence to be collected is of a nature which the patrol officer is not equipped or trained to collect, when the loss is $5,000 or more, there are five or more vehicles indicative of a series, or when a suspect is in custody.
h. Hazardous Device – only if requested by a Hazardous Devices Technician;
i. Child Abuse – ALL cases with visible injuries and/or where living conditions are a pertinent factor in the case;
j. Criminal Mischief
(1) When damage is $1,000 or more;
(2) Gang Graffiti (Profane or vulgar words spray painted on the side of a building are not by themselves considered gang graffiti); or
(3) When a suspect is in custody.
k. Death – Natural (only at the request of a supervisor or the Homicide Unit);
l. Hit and Run Crashes
(1) Anytime life threatening injury or death occurs; or
(2) When requested by a supervisor or Traffic Homicide Investigator.
m. All homicides;
n. Police vehicle damage sustained as the result of a criminal act;
o. All robberies to businesses – Unless it is known that the suspect did not touch anything;
p. Robbery (carjacking) – Only if evidence is present, the victim is injured, or the vehicle is recovered;
q. Robbery (individual) – Only if the victim has visible, photographable injuries, or if possible DNA is present;
r. All sexual batteries;
s. Lewd and lascivious assaults with evidence present;
t. All suicides or suicide attempts that require a detective response;
u. All traffic crashes involving JSO vehicles when there is injury sufficient to require emergency medical treatment and transportation by an emergency medical vehicle;
v. All traffic homicides; and
w. In other types of crashes, a CSU detective shall be called:
(1) When life threatening injuries or death is involved; or
(2) When requested by a supervisor or Traffic Homicide Investigator.
Securing and Protecting the Crime Scene
1. Once requested, CSU detectives will be notified within
one hour of the request.
If CSU detectives cannot respond immediately, they
will instruct the officer on how to proceed until they arrive, if necessary.
At major crime scenes, __________ ___________ will be notified immediately.
Major Case CSU detective and the CSU detective supervisor
The overall responsibility for the proper handling of major crime scenes rests with
the lead CSU detective and/or detective supervisor.
Who is in charge of the investigation and the immediate scene/inside perimeter.
The lead detective
Under no circumstances will entry be allowed inside the barricade taped inner perimeter, without first consulting
the lead detective or lead CSU detective.
In most cases, the work on the immediate scene/inside perimeter will be done by
the detective and the CSU detective assigned to the case.
All other personnel shall ______ themselves until that work is done.
exclude
If no detective is present at the scene, the _______ that is present is in charge of the scene.
supervisor
In cases where no supervisor or detective is present
the CSU detective will assume responsibility for the scene.
If a CSU detective (or other crime scene processor) is called, the scene shall remain ________ _______ until processing is complete.
absolutely undisturbed
The only exceptions are for _______________ or if
____________________________________.
personal safety
evidence is deteriorating (such as being rained on)