Exam 7 Flashcards
How do you secure a scene?
Seal off twice the size of apparent scene. (Police tape, Barricades, personnel)
How do you photograph a crime scene?
8 point overall method, medium/close-up/close-up with scale
Marking evidence: Written over tape must have?
Officers name, case #, date sealed (marked same every time)
How should you mark an evidence label?
Item #, case #, victim and suspect pedigree info, date item booked, contents, search warrant # (if applicable), evidence receipt
T:F All evidence must maintain a chain of custody until trial?
True
Packaging evidence: A solid item (except latent print cards)
Paper bags
Packaging evidence: Small items and DNA swabs, hinder lifts for hair/fiber
Paper envelope
Packaging evidence: Used mainly for bombs and arson evidence (accelerants/flammable)
Metal cans
Packaging evidence: solid heavy objects (firearms, sharp objects)
Cardboard box
Packaging evidence: bullets & casings/ small items that need protection when in a larger container
Pill box
Packaging evidence: large items unable to be packaged
Evidence labels/tags
Packaging evidence: Liquids
Glass jars (fragile) & plastic bottles
Packaging evidence: Documents, items awaiting fingerprint processing
Plastic bags
What are 4 elements of recording a crime scene?
Notes, photos, sketches, diagrams (final sketches & measurements)
What type of fingerprints are not visible until developed?
Latent prints
A small retractable magnet which applies special magnetic powder.
Magnetic fingerprint applicator “magic wand”
What type of fingerprints are visible to the eye (bloody, greese, dirt, ink)
Patent prints
What are the three basic fingerprint patterns ?
Loop (60-70%)
Whorls (23%-35%)
Arch (5%)
Common %
What are three main factors that affect fingerprint quality?
Climate condition, physical characteristics (coarse skin), nature of surface
How do you stop / start traffic?
Palm up towards driver
Point at driver and bend elbow, hand to chin to start
What’s the purpose of emergency traffic control?
Limit or guide flow of traffic in and around scene
Permit easy access of support emergency vehicles
Facilitate vehicular movement and reduce inconvenience to motoring public
What’s the justification for a field interview?
Some type of suspicion is sufficient grounds, may not be initiated without justification. Do not need PC
What is the Criminal Justice Information System (CJIS)?
A network of local, state, and federal networks and databases designed to collect and provide access to criminal Justice info (cji)
Who maintains the MULES policy and standards manual?
National law enforcement teletype system (NLETS)
When is second dissemination of CHRI required?
Maintained at the agency for 5 years
What is the purpose of the OCN on a fingerprint card?
Keeps tracks of the Arrest
What are the two types of interviews?
General - Of victim or witness to gain info about incident
Field interview- of a person under suspicious circumstances
What are 3 characteristics of the general interview
Goal Directed (Direct questions)
From general to specific (“What Happened”)
Specific questions about specific events (Never assume)
What are the 6 basic interviewing questions?
Who
What
When
Where
How
Why
How is Modus Operandi used in a burglary investigation?
Time of day, location, how entrance was gained, what property was taken ect.
What are the 3 phases of a burglary investigation?
Means of gaining entry, what they did inside and how they exited premises
