OPOTA Unit 11 Exam with Accurate
Solutions
Describe the primary responsibilities of the first responder to a crime scene - ANS-1.
Officer Safety
2.Rendering aid
3. Securing the scene
4.Interacting with the witnesses
Measures the officers can take to minimize contamination at a crime scene - ANS-
Contamination - the transfer of outside material to the scene (e.g., a hair from the first
responder drops off into the scene and it is collected)
Cross - contamination - the transfer of material between evidence within the scene (e.g.,
packaging the victim's clothing in the same bag as the suspects clothing)
• Personal Protective Equipment (PPE) should include latex/nitrile gloves, shoe covers,
respiratory equipment, eye protection, and anything else required by the scene's
circumstances
• In order to prevent contamination with your DNA, when wearing latex/nitrile gloves, do
not touch your face, hair, cell phone, etc.
• Changes gloves often in between samples, and when soiled, especially if you had
contact with both the victim and the suspect
• Do not talk over the evidence as your DNA (e.g., saliva spray) could be transferred to
the evidence
• Use disposable or sterilized equipment
• Sterilize all reusable equipment once you are done (e.g., placards, seals, tripod legs)
• Be sure you do not use the facilities, phones, change temperature or lighting controls,
eat, drink, smoke or spit inside the perimeter of the crime scene, as this may disturb
evidence that is present
• An officer should be designated to monitor entry onto the scene and keep
unauthorized personnel out
Paraphernalia Associated with Cocaine Use - ANS-- Pipes to smoke crack
- small mirrors
- short plastic straws
- rolled up paper tubes
- razor blades
- small spoons
- lighters
- butane torch
- chore boy
, - push rod (e.g., coat hanger)
- tire pressure gauge
- aluminum cans
Paraphernalia Associated with Methamphetamine Use - ANS-• Cut straws
• Pipes
• Mirrors
• Needles
• Torches
• Foil MSM (joint supplement mainly used to cut ice/crystal meth)
General Indicators of Depressant Use - ANS-• Drunken behavior and appearance
• Uncoordinated
• Drowsy
• Sluggish
• Thick, slurred speech
• Disoriented
General Indicators of Narcotic Use - ANS-• "On the nod" (An alternately wakeful and
drowsy)
• Droopy eyelids
• Depressed reflexes
• Dry mouth
• Facial itching
• Low/raspy speech
• Fresh puncture marks may be evident
Paraphernalia Associated with Heroin Use - ANS-• Tiny knotted balloons the size of a
pencil eraser
• Syringes
• Spoons
• Cotton swabs
• Cigarette filters
• Pieces of foil
• Bottoms of soda cans
• Gel capsules
• Folded paper bindles
• Small squares cut from grocery bags
• Small containers of water
General Indicators of Hallucinogen Use - ANS-• Hallucinations
• Dazed appearance
• Body tremors
• Uncoordinated
• Perspiring
• Disorientation
Solutions
Describe the primary responsibilities of the first responder to a crime scene - ANS-1.
Officer Safety
2.Rendering aid
3. Securing the scene
4.Interacting with the witnesses
Measures the officers can take to minimize contamination at a crime scene - ANS-
Contamination - the transfer of outside material to the scene (e.g., a hair from the first
responder drops off into the scene and it is collected)
Cross - contamination - the transfer of material between evidence within the scene (e.g.,
packaging the victim's clothing in the same bag as the suspects clothing)
• Personal Protective Equipment (PPE) should include latex/nitrile gloves, shoe covers,
respiratory equipment, eye protection, and anything else required by the scene's
circumstances
• In order to prevent contamination with your DNA, when wearing latex/nitrile gloves, do
not touch your face, hair, cell phone, etc.
• Changes gloves often in between samples, and when soiled, especially if you had
contact with both the victim and the suspect
• Do not talk over the evidence as your DNA (e.g., saliva spray) could be transferred to
the evidence
• Use disposable or sterilized equipment
• Sterilize all reusable equipment once you are done (e.g., placards, seals, tripod legs)
• Be sure you do not use the facilities, phones, change temperature or lighting controls,
eat, drink, smoke or spit inside the perimeter of the crime scene, as this may disturb
evidence that is present
• An officer should be designated to monitor entry onto the scene and keep
unauthorized personnel out
Paraphernalia Associated with Cocaine Use - ANS-- Pipes to smoke crack
- small mirrors
- short plastic straws
- rolled up paper tubes
- razor blades
- small spoons
- lighters
- butane torch
- chore boy
, - push rod (e.g., coat hanger)
- tire pressure gauge
- aluminum cans
Paraphernalia Associated with Methamphetamine Use - ANS-• Cut straws
• Pipes
• Mirrors
• Needles
• Torches
• Foil MSM (joint supplement mainly used to cut ice/crystal meth)
General Indicators of Depressant Use - ANS-• Drunken behavior and appearance
• Uncoordinated
• Drowsy
• Sluggish
• Thick, slurred speech
• Disoriented
General Indicators of Narcotic Use - ANS-• "On the nod" (An alternately wakeful and
drowsy)
• Droopy eyelids
• Depressed reflexes
• Dry mouth
• Facial itching
• Low/raspy speech
• Fresh puncture marks may be evident
Paraphernalia Associated with Heroin Use - ANS-• Tiny knotted balloons the size of a
pencil eraser
• Syringes
• Spoons
• Cotton swabs
• Cigarette filters
• Pieces of foil
• Bottoms of soda cans
• Gel capsules
• Folded paper bindles
• Small squares cut from grocery bags
• Small containers of water
General Indicators of Hallucinogen Use - ANS-• Hallucinations
• Dazed appearance
• Body tremors
• Uncoordinated
• Perspiring
• Disorientation
