CSI Evidence Collection and Seven SS

The first officer arriving at a crime scene, after providing or obtaining medical assistance for the injured and making an arrest of suspects (if possible), should immediately:

• photograph the scene.

• search for evidence.

• make a rough sketch of the scene.

• secure the scene.

All evidence gathered at a crime scene must be

• labeled and documented

• analyzed in a scientific manner

• handled carefully so not to contaminate the specimen

• all of the above

Small but measurable amounts of physical or biological material found at a crime scene

• individual evidence

• class evidence

• direct evidence

• trace evidence

Crime scene investigators

• document the crime scene and collect physical evidence

• conduct interviews

• issue search warrants

• prosecute suspects

Which of the following is a correct procedure for collecting fingerprints at a crime scene?

• Using a brush and powder on all surfaces without prior examination

• Only photographing fingerprints and not physically collecting them

• Dusting for fingerprints before collecting any other type of evidence

• Wearing gloves and using a lifting tape after dusting for prints

How should wet biological evidence (e.g., bloodstained clothing) be collected and stored?

• Placed in a sealed plastic bag immediately

• Dried before packaging in paper bags or envelopes

• Stored in a warm environment to prevent degradation

• Washed before packaging to remove any contaminants

What role does DNA evidence play in crime scene investigation?

• It is only used in theft cases

• It can provide a definitive match to a suspect

• It is considered circumstantial evidence and not very useful

• It is too expensive to be used regularly

Which of the following best describes the term "locard's exchange principle" in the context of crime scene investigation?

• The principle that states all evidence must be exchanged between law enforcement agencies

• The idea that whenever two objects come into contact, there is always a transfer of material

• A legal principle that allows for the exchange of evidence between defense and prosecution

• The method of exchanging evidence collection techniques among forensic scientists

Which is a crucial step in collecting physical evidence?

• Interviewing witnesses

• Labeling and packaging evidence properly

• Writing a report

• Conducting a press conference

Answer explanation

Labeling and packaging evidence properly is crucial to maintain its integrity and chain of custody, ensuring it is admissible in court. Other options, while important, do not directly pertain to the physical evidence collection process.

Tags

DOK Level 2: Skill/Concept

This person documents the crime scene and collect physical evidence

• Crime Scene investigator

• First responder

• Specialist