Forensic Science Crime Scene

What is the role of forensic photographers at a crime scene?

• To document the crime scene by taking photographs of evidence, injuries, and the overall scene.

• To analyze blood samples in the lab

• To collect physical evidence from the crime scene

• To interview witnesses and suspects

Describe the process of collecting and packaging physical evidence at a crime scene.

• Mixing all the evidence together in one container

• Ignoring the evidence and leaving it at the scene

• Documenting the scene, identifying and marking evidence, collecting evidence using proper tools and techniques, packaging each item separately in appropriate containers, sealing and labeling the containers, and maintaining a chain of custody.

• Using bare hands to collect evidence

Explain the concept of Locard's exchange principle and its relevance to crime scene investigation.

• Locard's exchange principle states that every contact leaves a trace, and it is relevant to crime scene investigation because it suggests that whenever two objects come into contact, there is always a transfer of material. This principle is used to analyze evidence and link suspects to crime scenes.

• Locard's exchange principle states that evidence should not be analyzed to link suspects to crime scenes, making it irrelevant to crime scene investigation.

• Locard's exchange principle suggests that only living organisms leave traces, making it irrelevant to crime scene investigation.

• Locard's exchange principle states that there is no transfer of material between objects, making it irrelevant to crime scene investigation.

Discuss the role of forensic scientists in analyzing evidence collected from a crime scene.

• They analyze and interpret social media posts to provide scientific support for criminal investigations.

• They analyze and interpret weather patterns to provide scientific support for criminal investigations.

• They analyze and interpret physical evidence such as DNA, fingerprints, and trace materials to provide scientific support for criminal investigations.

• They analyze and interpret financial records to provide scientific support for criminal investigations.

Tags

NGSS.HS-LS3-1

What type of sketch uses a reference point and line to measure the distance to the pieces of evidence?

• Baseline method

• Coordinate method

• Triangulation method

Evidence markers should be placed before taking pictures so each piece of evidence can be seen clearly in the photos

• True

• False

Which are included in crime scene sketches? (choose all that apply)

• time of death

• scale

• evidence

• cause of death

• location

In addition to videotape, crime scene sketches:

• add details

• show scale and placement of evidence

• contain a key or legend

• all are true

What is the first step in processing a crime scene?

• Informing the media

• Leaving the area unattended

• Collecting evidence immediately

• Securing and isolating the area

What is the purpose of documenting the crime scene?

• To create a fictional story about the crime

• To preserve evidence and aid in the investigation and prosecution of the crime

• To entertain the investigators

• To confuse the evidence and hinder the investigation