Your SlideShare is downloading. ×
Homicide Chapter 4
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Homicide Chapter 4

1,970
views

Published on

Published in: Technology, Health & Medicine

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
1,970
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
15
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. South Puget Sound Community College
  • 2. Forensic Homicide Investigation PRELIMINARY SCENE INVESTIGATION: DETECTIVES “Luck and Chance” INITIAL NOTIFICATION: -detectives rarely the first on scene -response must be methodical -start notes Date/time of notification/how Name, rank, ID # of person notifying you Complete details of info and event
  • 3. Forensic Homicide Investigation PRIOR TO LEAVING FOR THE SCENE: Convey info to officers at the scene: -crime scene -wits -avoid landlines at scene -crime scene log -license numbers
  • 4. Forensic Homicide Investigation ARRIVING AT THE SCENE: NOTE: -Time -Exact location -Persons present -Condition/position of the body -Info concerning events of death -Weather conditions -Outside lighting conditions (night time) -Points of observation -Possible video surveillance
  • 5. Forensic Homicide Investigation PRELIMINARY STEPS UPON ARRIVAL: CHECKLIST -Ascertain boundaries -Scene approach -Initial survey -Ascertain fragile evidence -Work photos -Record ambient temperature -Observe entire location -Take comprehensive notes
  • 6. Forensic Homicide Investigation  NOTE TAKING: -Exact times -Subject of time may be alibi for suspect -Note taking forces investigator to slow down PHOTOGRAPHS: -In addition to CSA photos -Conditions as you arrived
  • 7. Forensic Homicide Investigation  DESCRIBING THE SCENE: 1. Record full description of decedent. 2. List evidence of injuries/apparent cause of death 3. Bloodstains? Wet/dry? 4. Condition of body? 5. Color of blood? 6. Condition of clothing 7. Condition of the hands? 8. Jewelry? 9. Describe immediate surroundings
  • 8. Forensic Homicide Investigation 10. Weapon description 11. Bullet Holes/shell casings 12. Note presence of bottle, drugs, etc IMPLEMENTING CRIME SCENE PROCEDURES: -Primary detective takes charge -Handle first officer professionally -Evaluate the scene -Every dead body call is a homicide until proven otherwise -Outdoors-wide area cordoned off -Indoors-scene securing easy -Determine areas of crime scene
  • 9. Forensic Homicide Investigation DIRECTION OF UNIFORMED PERSONNEL AT THE SCENE: -Explain the dangers of contamination to Sgt./ask for cooperation -Determine if any evidence impounded prior to your arrival -Arrest made prior to your arrival suspect still at scene? -Uniformed officers at the scene remain at post until directly relieved by detectives -Uniform officers may be utilized to transport suspect -Specifically direct them not to speak to suspect
  • 10. Forensic Homicide Investigation  TEAMWORK: -Patrol officers -Detectives -ME/Coroner -CSAs -DAs -Medical personnel -Other agencies PLAY WELL WITH OTHERS!
  • 11. Forensic Homicide Investigation PRELIMINARY INTERVIEW OF 1ST PO: -Detailed account Time of call Time of arrival What did/saw Opinions of cause of death Wits/suspects Vic info Precinct cops know their players Give credit where due
  • 12. Forensic Homicide Investigation INTERVIEW OF AMBULANCE PERSONNEL: -What occurred prior to the arrival of police -Saw/heard/smelled/did -All details of actions -Statements made by anyone to them CURIOUS ONLOOKERS: -Courtesy and professional -Avoid conversations with “village idiot” -Uniformed/plain clothes/detectives -Infiltrate crowd with officers in plain clothes
  • 13. Forensic Homicide Investigation WITNESSES: -Determine ID of all wits -Separate all wits before interview -Wits interviewed by detectives while primary investigates -Formal interview to follow -Eyewits most valuable -ALWAYS KEEP WITS SEPRARTED FROM ONE ANOTHER -Patience/thorough -Get wits to relax -bad guy Types -Effective interviewing needs constant improvement -Interview versus interrogation
  • 14. Forensic Homicide Investigation THE CANVASS: -Door-to door, roadblock inquiry -Important investigative tool -Performed while scene investigation ongoing -Not in-depth interviews but just locate potential wits -Not names/contact of all persons contacted -Keep record of all person not contacted -RECANVASS: -Contact past wits with no info -Attempt to contact wits not home 1st time
  • 15. Forensic Homicide Investigation Canvass considerations: -Type of crime -Time of day -Listen carefully to what people say or don’t say -Vehicles within crime scene area -Exact Time/exact location-recanvass PRELIMINARY BODY EXAM AT SCENE: -Know your protocols/jurisdiction -ME/Coroner will perform autopsy later -Position of body -Description of body
  • 16. Forensic Homicide Investigation Full body exam: Rigor mortis/livor mortis/algor mortis Wounds (exit v. entry) Evidence on body Clothing Field exam can be limited Death pronounced legally -Body may be at scene long periods of time ME/Coroners have good working relationship May sustain/deflate theory of crime