Unit 11 SPO's - Investigation - OPOTA fully solved 2024/2025

Unit 11 SPO's - Investigation - OPOTAprimary responsibilities of the first responder to a crime scene - correct answer o Officer safety o Rendering Aid o Pronouncement of Death measures the officer can take to control contamination at a crime scene - correct answer o Personal Protective Equipment (PPE) for yourself should include latex/nitrile gloves, shoe covers, respiratory equipment, eye protection, and anything else required by the scene's circumstances o Contamination is the transfer of outside material to the scene (e.g., a hair form the first responder dropped off into the scene and it is collected) o In order to prevent contamination with your DNA, when wearing latex/nitrile gloves, do no touch your face, hair, cell phone, etc.. o Change gloves often, in between samples and when soiled, especially if you have had contact with the victim and the suspect o Do not talk over the evidence as your DNA could be transferred to the evidence (e.g., Saliva) o Use disposable or sterilized equipment o Sterilize all reusable equipment once you are done (e.g., place cards, scale, tripod legs) o Be sure you do not use the facilities or phones, change temperature or lighting control, eat, drink, smoke, or spit inside the perimeter of the crime scene, as this may disturb evidence that is present difference between class and individual evidence characteristics - correct answer o Class o Individual chain of custody - correct answer o Labeling evidence o Factors to show integrity of evidence in the chain of custody o Information a chain of custody must reflect o Paperwork for the chain of custody must remain with the evidence what first responders should ensure before collecting any device that may contain electronic evidence - correct answer the broad categories of electronic evidence - correct answer how you would preserve cloud based or third party stored digital evidence - correct answer how digital evidence is preserved on collected physical devices - correct answer the crime scene photograph perspectives - correct answer o Overall or establishing shots o 4 Corner approach o Mid-Range or evidence establishing shots basic procedures for photographing crime scenes - correct answer o Establish a break between different scenes by using a title card or take a picture that contains identifying information at the beginning of the series (e.g., take a picture of the address first, take a picture of the car with front license plate first) o Document the entire scene using overall photographs o Photograph all fragile items of evidence ( footwear marks, bloodstains) o Place photo place cards in the scene on all items of interest and reshoot a second series o Document all known evidence items with evidence establishing shots and evidence close - up shots o Use placards sequentially whenever possible to clearly differentiate the various items of evidence from one another (e.g., do not start with #2 than to #5) o If items are discovered later in the processing; ensure that all appropriate photographs are created o This may require taking additional overall cardinal rules of crime scene photography - correct answer o Fill the frame o Maximize depth of field o Keep the lens perpendicular to the subject reasons for tracing stolen property - correct answer o May reveal perpetrator