Forensic Science Lecture 3 Crime Scene Management Donald

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Forensic Science Lecture 3 Crime Scene Management Donald J. Ross, M. D.

Forensic Science Lecture 3 Crime Scene Management Donald J. Ross, M. D.

Scene Management Link Subject to the Crime Identification and recovery of material left at

Scene Management Link Subject to the Crime Identification and recovery of material left at or taken from the scene Murder Investigation Manual © ACPO Centrex 2006

Homicide Investigation • This will encompass multiple scenes – Place used to plan the

Homicide Investigation • This will encompass multiple scenes – Place used to plan the crime – Place where victim and offender encountered each other ( work, mall, school, park) – Anything used to transport the victim – Dump site – Weapons and ammunition Murder Investigation Manual © ACPO Centrex 2006

Homicide Investigation, cont. • Places where weapons are hidden • Entry and exit points

Homicide Investigation, cont. • Places where weapons are hidden • Entry and exit points from any of the above scenes • Witnesses • Victims’ residence, work places and vehicle • Suspects’ homes, workplaces and vehicles Murder Investigation Manual © ACPO Centrex 2006

Pearl Case • Body wrapped in black plastic bags, placed on the ground in

Pearl Case • Body wrapped in black plastic bags, placed on the ground in a large wooded area. (egress) • Ransom note mailed to house, (postal system) • The apartment where murder took place • The murderer’s vehicle • Transportation from vehicle to dump spot • His place of work ( visit by Detectives) • Where was it solved? Dump site and workplace linked by plastic packing fiber

Bridgetown Basement • Wife went missing • Husband sells car to junk yard and

Bridgetown Basement • Wife went missing • Husband sells car to junk yard and has car crushed, make the yard a crime scene • Home is searched, • She is found one year later in the basement • She had hung herself using a wire • Alcoholic • Wire broke and she fell behind piles of boxes

Trash • An entire garbage route • Each garbage truck used to haul along

Trash • An entire garbage route • Each garbage truck used to haul along that line • Garbage dump itself.

Mall Lady • • The mall parking lot Her home Her husband Her vehicle

Mall Lady • • The mall parking lot Her home Her husband Her vehicle Husband’s vehicle The assailant Assailant’s residence The van

Developing a Crime Scene Strategy • Review what has already occurred before your arrival

Developing a Crime Scene Strategy • Review what has already occurred before your arrival on scene • Set Objectives: Interviews, Processing Scene, Photography, Evidence Collection, Search Warrants, Running prints etc. . • Resources: Personnel , Equipment & Expenses • Limitations: Set as wide parameter as possible limited by jurisdiction & distances Murder Investigation Manual © ACPO Centrex 2006

Implement the Strategy • Secure the Scene; post officers, set up a log, name

Implement the Strategy • Secure the Scene; post officers, set up a log, name logging officer & handoff, name all those entering and leaving with time and date, under orders from superior only those authorized by him or her can enter, senior officers and fellow officers, people to motels, screaming family members keep out • Preserve the Scene; unaltered state, DNA contamination, weather, animals Murder Investigation Manual © ACPO Centrex 2006

Implement Strategy, cont. • Examine & Search the Scene; which can be dangerous •

Implement Strategy, cont. • Examine & Search the Scene; which can be dangerous • Record the Scene; video, photos, survey equip, drawings, aerial, reconstruction • Process the Scene • Release the Scene Murder Investigation Manual © ACPO Centrex 2006

Additional Information • Do the homework questions

Additional Information • Do the homework questions