Crime Scene- Forensic Science Flashcard

Front

What are the key components of a crime scene sketch?

Back

A crime scene sketch includes details, scale and placement of evidence, and a key or legend.

Front

What does 'scale' refer to in a crime scene sketch?

Back

Scale indicates the proportion between the representation in the sketch and the actual size of what it represents.

Front

What is an overhead sketch in forensic science?

Back

An overhead sketch is drawn as if the viewer is looking down from above the scene; it is also known as a bird’s eye view sketch.

Front

What are the essential steps for the correct collection of evidence?

Back

The essential steps include documenting the location where the evidence was found, correct packaging of evidence, and maintaining proper chain of custody.

Front

List the 7 steps of preserving a crime scene.

Back

1. Secure and isolate the crime scene 2. Record the scene 3. Search for evidence 4. Collect and package evidence 5. Maintain the chain of custody 6. Obtain standard/reference samples 7. Submit evidence to the lab.

Front

What is the purpose of documenting a crime scene?

Back

Documenting a crime scene helps to create a permanent record of the scene, which can be used in investigations and court proceedings.

Front

Why is maintaining the chain of custody important?

Back

Maintaining the chain of custody is crucial to ensure that evidence is preserved in its original state and can be reliably used in court.

Front

What is the role of a key or legend in a crime scene sketch?

Back

A key or legend explains the symbols used in the sketch, helping to clarify the representation of evidence and other important features.

Front

What is the difference between a rough sketch and a final sketch?

Back

A rough sketch is a quick, freehand drawing made at the crime scene, while a final sketch is a more polished and accurate representation created later.

Front

What is the significance of obtaining standard/reference samples?

Back

Standard/reference samples are used for comparison with evidence collected from the crime scene to help identify substances or materials.