Criminal Investigations|2023 LATEST UPDATE|GUARANTEED SUCCESS

*What is the MPTC model and acronym for responding to the scene/conducting an effective investigation? RESPECT. Respond to scene and make it safe. Emergency care for injured. Separate and remove people. Protect crime scene. Evidence collection. Corroborate evidence with M.G.L. Take action & Testify in court. *You are conducting an A&B investigation with a victim, suspect and 3 witnesses. 2 witnesses need to leave asap. In what order should you conduct interviews? 1. Victims 2. Witnesses 3. Suspects 00:01 01:25 *You are the first Ofc on scene of a crime scene, What is the first step taken to protect evidence/before starting a crime scene log and sketch? Establish the perimeter *When do you begin a sketch of a crime scene? On initial walk through How do you document stains? Describe them (reddish brown substance) Do NOT classify them (blood) *If tasked w/ taking photos, What are the 3 types of photos? 1. Overall 2. Mid-Range 3. Close-Up (Begin w/ broad perspective and move inward) *What should you NOT do when taking crime scene photos? Do not use personal camera or mobile device, avoid showing police, EMS and other public safety personnel in photos, do not delete photos or use editing software to permanently alter original photo. Evidence Based Prosecution Evidence is usually more reliable than eye witnesses. Evidence does not have a memory and cannot change its mind. Chain of Custody Meticulous and chronological documentation of evidence, from the moment it is seized to its presentation in court. *What would you place a shirt that is DRY, ripped, and has a blood stain on it? Paper Bag *What is the best way to collect evidence (ex: shirt) that is wet from blood/fluid? Store in a PLASTIC bag for NO MORE than 2 hours then transfer to paper bag *What does the "Best Evidence Rule" apply to? Written Documents (Documentation) Used to ensure accuracy and prevent fraud. Have to produce original document in court. If original document cannot be produced there must be a valid reason. 00:00 01:25 To search for evidence where a reasonable expectation of privacy exists, police must possess? Probable Cause *What are the 4 Search Methods? Systematic Lane Grid Zone What are the 4 elements of a Systematic Search Top-Down Front-Back Left-Right Outside-Inside *Type of search used to cover large area? (ex: missing person or evidence that is easy to see) Lane Search (divide area into equal parallel lanes going in same direction) *Type of search used to cover areas more thoroughly for evidence that is harder to find? Grid Search (divide search area into equal parallel lanes that cross over each other at 90 degrees) *Type of search used to cover scene that can be divided into obvious sections? (ex: room w/in house) Zone Search *You and 5 officers are responsible for searching a large open field for a 8 yr old girl, wearing a red shirt and carrying a white teddy bear. What is the best type of search to conduct? Lane Search ____________ Testimony is "second-hand" knowledge repeated bout what another person said about what he/she saw, heard, or felt Hearsay Most common exception to hearsay? Spontaneous Utterance Out-of-court statements uttered during the heat of the moment while under stress or excitement Spontaneous Utterance