MPTC Criminal Investigations Exam Questions and Answers, Latest Updated 2024/2025 (GRADED A+)

MPTC Criminal Investigations Exam Questions and Answers, Latest Updated 2024/2025 (GRADED)inner perimeter - Answer- Where the actual crime scene took place and contains physical evidence how big is the inner perimeter - Answer- Should be at least twice the size as the actual crime scene (can always be adjusted later) how many officers should guard the crime scene of an inner perimeter? - Answer- two who is allowed at a crime scene - Answer- authorized investigators and crime scene investigators ONLY crime scene log - Answer- Document that tracks who visits and enters the crime scene and for what purpose. information on a crime scene log - Answer- date and time log began all persons inside/entering (victims/witnesses/suspects/police) name and agency of people entering entry date, time and signature reason for entry exit date, time and signature outer perimeter - Answer- Staging area for support personnel and equipment what is the use of an outer perimeter? - Answer- -store equipment and supplies -create a log of equipment assets and supplies to include date/location when deployed -credentialed news media representatives purpose of a rough sketch - Answer- provide an overview of the crime scene and its contents overall photograph - Answer- take one overall photograph of person to include their face and other unique features (tattoos, clothing, jewely, etc.) mid-range photograph - Answer- take photos of injury 2-4 feet away while keeping other distinguishing person features from overall image in view close-up photograph - Answer- take photos of each injury from less than 2 feet away. place ruler next to injury to demonstrate size MPTC Criminal Investigations Exam Questions and Answers, Latest Updated 2024/2025 (GRADED) follow-up photograph - Answer- injury bruising and swelling may intensify 2-3 days later. use the same protocols as overall, mid-range and close-up during follow-up photographs systematic searches - Answer- are determined by circumstances and individual officer preference. more effective when done consistently (top-down, front-back, left-right, outside-inside) lane search - Answer- Used to cover large areas quickly for missing people or evidence (ex. looking for a red shirt in an open field) -divide area into equal parallel lanes go in the same direction max width for lane and grid searches - Answer- six feet grid search - Answer- Cover areas more thoroughly for evidence that is harder to find. Ex. 6" knife in wooded area - Equal parallel lanes cross over each other at 90 degrees zone search - Answer- cover crime scenes that can be divided into obvious quadrants. (ex. each room in a house could be a zone) lane or grid methods can be used in each zone Person search incident to arrest - Answer- a search incident to arrest may be made only for purposes of seizing contraband, instrumentalities or other evidence of the crime for which an arrest has been made, to prevent concealment or destruction. also to remove any weapons that could be used to escape. best practices for strip searches - Answer- private area/not viewable to the public no more than one additional officer present gender of officer and suspect are the same the officer does not touch suspect done in a non-humiliating way consistent with department policy search the person _____ before any containers in his or her possession - Answer- first when can an officer search a vehicle for evidence? - Answer- they have a warrant, PC, consent or search incident to arrest Vehicle search incident to arrest - Answer- Can only occur if the arrestee is unsecured and within reaching distance of the passenger compartment at the time of the search or there is reason to believe the vehicle contains evidence relevant to the crime of arrest. vehicle inventory must be conducted pursuant to ... - Answer- the agency's written inventory policy what is required before the police can conduct an inventory of a vehicle? - Answerlawful impoundment after the arrest of the driver, impoundment (towing) of the vehicle is permissible for 4 legitimate purposes. - Answer- 1 - to protect the vehicle and its contents from theft or vandalism 2 - protect the public from dangerous items that might be in the vehicle. 3 - protect public safety where the vehicle, as parked creates a dangerous condition; or 4 - when the vehicle is parked on private property common circumstances that allow police to lawfully impound (tow) a vehicle - Answerabandoned vehicles after driver's arrest when vehicle is traffic hazard following OUI arrest vehicle seized pending forfeiture vehicles that are evidence of a crime illegally parked vehicles when towing is authorized physical evidence - Answer- tangible evidence, capable of being perceived by sense of touch. (drugs, money, clothing, weapons, etc) Trace Evidence - Answer- transferred from one surface to another during physical contact between people, places and objects. often overlooked because of its microscopic size (human hair, gunshot residue, soil, textile/wood/paint fibers) DNA evidence - Answer- biological evidence used to connect an offender conclusively to a crime human hair, tissue, bones, teeth, blood, salvia, semen, or other bodily fluids plastic fingerprint evidence - Answer- can be seen with the naked eye and left behind when a person's finger leaves an indention. can be found in soap, gum, wax, etc patent fingerprint evidence - Answer- can be seen with a naked eye and left behind when material on fingers (blood, dirt, oil, etc.) is transferred onto a surface. they can be found on paper, wood, cloth, plastic, metal and glass Latent fingerprint evidence - Answer- cannot be seen with the naked eye and left behind when oil and sweat on finger skin are transferred to a smooth, non-porous surface. these prints are seen when exposed to chemicals or light technologies. primary responsibility for first responders regarding trace, DNA and fingerprint evidence - Answer- identify and protect the evidence until expert assistance arrives impression evidence - Answer- created when pressed against another with enough force to leave a matching imprint ex. shoe prints in snow clothing, bedding and linen evidence - Answer- items worn or used by both victims and suspects. how to package clothing, bedding or linen evidence - Answer- dry clothing into a paper bag/cardboard box wet into a non-porous plastic container. wet clothing evidence storage - Answer- should not remain inside any plastic container for more than 2 hours must be air-dried before storing digital evidence - Answer- electronic files found in computers, flash drives, smart phones, tablets, etc. audio/video files, images, email and text messages, police body-worn camera, recorded suspect interview documentary evidence - Answer- paper evidence such as letters, contracts, or medical records chain of custody - Answer- the documented and unbroken transfer of evidence show-ups - Answer- Witnesses try to match the suspect with one person, by live appearance. generally occur at the scene of the crime. Show up best practices - Answer- identify relevant estimator variables control system variables time location minimize suggestiveness and visual cues of custody separate witnesses participating. give consistent instructions photo arrays - Answer- suspect's picture is placed with others for victim identification the minimum amount of photos to use in a photo array - Answer- 6 is the minimum, but officers should use at least 8 how to administer the photo array - Answer- double blind show each photo once at a time. the suspect can be in any position, except the first show all the photos twice, in the same order. unsolved crimes - Answer- unsolved case status means all investigative leads were exhausted and the offender remains unknown and at large. best practices for unsolved crimes - Answer- provide victims and witness with social services and other referral info. complete a thorough and detailed report. continue to monitor other crimes with similar MO take time to re-contact victim or witness Active Crimes - Answer- potential evidence still exists and needs to be collected, reviewed, or checked. best practices for active crimes - Answer- continue searching for, collecting and corroborating evidence towards leads provide victim/witness social services conduct follow-up interviews/interrogations conduct photo array/live lineup send evidence for forensics testing seek complaint or arrest warrant detailed report solved crimes - Answer- solved case status means an offender was identified and charged best practices for solved crimes - Answer- continue searching for, collecting and corroborating evidence towards leads provide social services detailed report coordinate with the prosecutor - keep victim/witness informed of trial dates. their participation can be critical for success prepare for trial best practices for testifying in court - Answer- arrive early with clean attire use body language that projects confidence and patience (no unnecessary hand/body movement) active listening, follow instructions pause 2-3 seconds before answering questions only answer what is asked, be precise use your own words, don't memorize answers always tell the truth perjury - Answer- lying under oath, prosecutors can charge officers who lie under oath define family or household members in DV (5 things) - Answer- are/were married are/were residing in the same household are/were related by blood or marriage have a child in common regardless of marriage or living arrangement are/were in a substantive dating relationship what is a substantive dating relationship in regards to DV - Answer- length type of relationship frequency of interactions between parties time since relationship ended who has the ultimate say/decision on if the parties were in a substantive dating relationship - Answer- the officer decides. physical abuse in DV - Answer- used to intimidate and control victims. (includes assault, battery, threats of violence) sexual abuse in DV - Answer- sexual assault and rape are used to intimidate, demean and demonstrate power over victims.