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Crime Scene Investigation Aim CSI1a – What do police do at a possible corpus delicti?
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Parts of a REAL Crime Scene Investigation Part I – Preliminaries The initial actions taken when a scene is determined to be an actual crime The steps taken when police officers actually have a corpus delicti The proper handling of evidence is primary to the resolution of any case Second only to the safety and well-being of victims of the crime
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Parts of a Crime Scene Investigation Part I – Preliminaries Initial actions: Render assistance – is anyone in need of medical help? Search the scene for the perpetrator(s) Determine what area makes up the crime scene Set up crime scene tape Immediately process any weapons Secondary actions Obtain personal evidence CANVAS the crime scene for witnesses
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Parts of a Crime Scene Investigation Part II – Documentation - a written or visual record of the crime scene. A. Photography Visual record of crime scene Cameras as well as video tape records of scene B. Crime Scene Sketches Positions evidence at the scene Allows investigators to get a “bird’s eye view” of the scene
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Parts of a Crime Scene Investigation C. Written Notes/ Documentation Allow investigators to keep track of crime details Includes: all witness statements Notes of investigators Any reports detailing the crime –ME reports –psych reports –evidence analysis reports
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Parts of a Crime Scene Investigation Copius notes must be taken of the scene and its evidence May be referred back to in court, especially when months or years have passed between the crime and the associated court case Questions that may arise later: Who found or processed the evidence? When was it found? Where was the evidence at the scene? Who said what at the scene and after?
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PPPSCRIPT An acronym for looking at a crime scene Each letter represents a part of the investigation at the start P – PulseR – Record P – ProtectI – Identify P – PhotographP – Package S – SketchT - Transport C – Collect
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“Pulse” Victims are an important source of information They can say who did it Or describe the suspect A live witness’s personal evidence is always better than a dead victim’s physical evidence 9 times out of 10 Render first aid if necessary Even if this means losing evidence!
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“Protect” Check the crime scene for the perpetrators Secure weapons So no one accidently injures self To protect if perpetrator is still in vicinity Tape the area off from all unauthorized personnel Witnesses Reporters Spectators Non-essential personnel (ex: the mayor)
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Parts of a Crime Scene Investigation Aim CSI 2b - What does PPPSCRIPT stand for?
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Photographic Evidence Photograph everything A visual record of the scene Multiple photos at varying angles of: Evidence Victims’ bodies Entryways / exitways Panoramic or overlapping photos of entire scene
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Photographic Evidence Example of key photographic evidence Ted Bundy’s bite marks on dead woman’s buttocks. How did police know this bite occurred after death? How did they identify it with Bundy?
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“Sketch” Crime Scene Mark positions of all evidence Should correlate to the photos taken Gives a sense of position for later trial case… Example “12 Angry Men” The position and movement of the old man in his apartment Could he have really made it to the door in time?
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Polar (rectangular) Coordinate Sketch All evidence measured from fixed points that are at right angles to each other Walls of a room Fences or streets outside Distance measured to nearest inch
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Triangulation Sketch Two fixed reference points used Distance of crime scene evidence from reference points For irregular scenes with no right angles Outdoor area like woods or fields Also – used in accident scenes Bank
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Cross Projection Sketch 3D view necessary to show all evidence “open shoe box” view In case of St. Valentine’s Day Massacre bullet holes would have been shown all over the walls bodies shown on the floor
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“Collect” Evidence Collection of evidence will help to determine… Corpus delecti (the body of evidence) was there actually a crime? Modus operandi (MO) what was the method used to commit the crime? Can we determine the perpetrator’s identity at this point? Elimination prints – take prints of all those who may have had access to area; includes: Family Friends Delivery people P.O.s investigating the scene
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Search Patterns Ways of searching the crime scene Spiral Lots of evidence Tight area Few officers
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Search Patterns Ways of searching the crime scene Grid Search Few officers Large area to cover Each square of the grid is searched individually
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Search Patterns Ways of searching the crime scene Line search Large number of officers Large area to cover
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Search Patterns Ways of searching the crime scene Point to Point search Often allows officers to find the perpetrator Example: a Hauppauge Cat Burglar finally caught by police
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“Record” Information Note locations where evidence is found (sketches), who found it, and when. Note all witness statements. Which type of sketch is this?
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Parts of a Crime Scene Investigation – Taking the evidence – “IPT” of PPPSCRIPT
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“Identification” of Evidence Type of evidence being processed Where is it going to go? (i.e. Serology lab, Fingerprint lab) Which type of analysis will be done?
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“Package” the Evidence Each type of evidence is handled in a specific way: Blood and serums: Stained materials paper bagged - allowed to air dry Blood and serum samples can be simple taken and stored or; some samples are preserved with chemicals for later analysis Prints or objects to be printed: are boxed and stored for transport in special containers Everything else bagged All evidence labeled Date Time Collecting officer’s name
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“Transport” the evidence Proper carrying of materials to be processed Follow the “chain of custody” The whereabouts of evidence must be known from beginning to end From the moment evidence found to the time the DA passes it into evidence in court
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Chain of Custody The location of evidence must be maintained at all times From crime scene to court Three groups may handle the evidence prior to court The prosecution – they and their experts (crime lab) The defense – they and their experts (forensic consultants, e.g. Henry Lee and the Simpson Case) The evidence storage or lockup
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Reconstruction The determination of what happened or may have happened at the scene based on evidence; observations of the crime scene; and witness statements. The reconstruction may involve Scaled diagrams or sketches; Models of the scene; Or whole reconstructions of the scene Reconstruction is a hypothesis that attempts to explain the circumstances of the crime Police and prosecutors test this hypothesis with all of the above Both facts and assumptions may be in evidence
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Case Study – Jeffrey McDonald and Charles Manson
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Case Study Jeffrey McDonald Jeffrey Robert MacDonald was born in New York, grew up in Patchogue, LI Attended Patchogue High School voted "most popular" and "most likely to succeed“ won a scholarship to Princeton University. In the fall of 1963, married his high school sweetheart Colette was pregnant with their daughter Kimberley
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Case Study Jeffrey McDonald After Princeton attended medical school in Chicago second child, Kristen, was born in May 1967 after med school, joined the Army as a Group Surgeon in the Green Berets in 1969 entire family moved to Fort Bragg, North Carolina.
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Location: Fort Bragg, NC Time: 3:42 a.m. Date: February 17, 1970, Two phone calls made to Military Police at Fort Bragg First call could not be understood Second call - MacDonald reported a "stabbing“ Officers arrived to find Colette, Kimberley, and Kristen all dead in their respective bedrooms.
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Colette, pregnant with her third child Found lying on bedroom floor Bludgeoned repeatedly (both her arms were broken) Stabbed 37 times McDonald’s torn pajama top lay across her chest On headboard: "pig" written in blood
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Case Study Jeffrey McDonald – the Murders Kimberley, age five, was found in her bed Also bludgeoned and stabbed with a knife between eight and ten times Her younger sister Kristen, age two, was also found in her bed Stabbed with a knife 33 times and stabbed with an ice pick 15 times
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MacDonald was found next to his wife, alive but wounded His wounds were much less severe than his family's injuries Suffered cuts and bruises on his face and chest Also had a "clean, small, sharp" incision This caused one lung to partially collapse Treated in the hospital and released after one week
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Case Study Jeffrey McDonald – His Story MacDonald had fallen asleep on couch the night before He was awakened by the screams of Colette and Kimberley As he rose from the living room couch to go to their aid He was attacked by three male intruders A fourth female intruder chanted "Acid is groovy, kill the pigs."
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Case Study Jeffrey McDonald – His Story The three males attacked him with a club and ice pick. During the struggle, MacDonald claimed that he then used his pajama top to ward off thrusts from the ice pick. Eventually, MacDonald said he was knocked unconscious by his assailants
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Evidence found and later used in court Blood trail found in hall way from MacDonald master bedroom to Kimberly’s bedroom Ice pick found Blue pj fibers all over bedroom “PIG” written in blood Holes in pj top McDonald used to defend himself Evidence lost Blood and hairs fingernails A barefoot print left in blood on the wood floor of the master bedroom
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Case Study Jeffrey McDonald – Innocent, than Guilty Evidence and story initially pointed to the hippie killer theory McDonald went back to surgery after military discharge Starts to party and run around with women Appears on Dick Cavett Show, laughing and joking No sign of grief Collette’s parents ask case to be reopened
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Case Study Jeffrey McDonald – Innocent, than Guilty Civil case – McDonald’s personal evidence vs physical evidence Fought for his life – little damage to living room Stated he did not own an icepick – in fact did PJ top stab - damage not consistent with what should have happened Blood trail - not consistent with his story
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Case Study Jeffrey McDonald – Innocent, than Guilty Reconstruction of fateful night MacDonald’s wife wanted divorce Knew he was cheating on her In a fit of rage, killed her Daughter Kimberly walked in – still in rage, killed her Realization sets in – cover up time Kills daughter Kristen, Manson family style Stabs pj top to make it appear he defended self Stabs self to make it appear he was attacked
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Case Study Jeffrey McDonald – Innocent, than Guilty MacDonald found guilty of 2 nd degree murder in wife and older daughter’s deaths 1 st degree murder in younger daughter’s death Serving life in jail Has remarried (2002) Will not be eligible for parole again until 2020 (he will be 77 years old)
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