Crime Scene Sketching Techniques

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Questions and Answers

What is the primary characteristic of a rough sketch?

It shows the scene in three dimensions.

It is usually created using a computer program.

It is drawn to scale and polished for courtroom use.

It is a pencil-drawn outline made at the crime scene. (correct)

Which sketch is also referred to as a side-view sketch?

Final Sketch

Elevation Sketch (correct)

Exploded Sketch

Overhead Sketch

What does triangulation mapping primarily offer?

An easy method using GPS technology.

A less precise measuring technique.

The most accurate and labor-intensive mapping method. (correct)

A comprehensive overview from a bird’s eye perspective.

What is an exploded sketch used for?

To display the scene with walls flattened around a floor. Signup and view all the answers

Which mapping technique is most helpful for large outdoor scenes with few landmarks?

Polar/Grid Mapping Signup and view all the answers

Match the following sketch types with their descriptions:

Rough Sketch = First pencil-drawn outline of a crime scene Final Sketch = Finished and polished rendition for courtroom presentation Three-Dimensional Sketch = Illustration of the scene in three dimensions Overhead Sketch = View of the scene from above, also known as bird’s eye view Signup and view all the answers

Match the following mapping techniques with their characteristics:

Triangulation Mapping = Most accurate and laborious method using fixed points Baseline Mapping = Basic technique measuring evidence from a baseline Polar/Grid Mapping = Useful in large outdoor scenes with few landmarks Rectangular Coordinate Mapping = Uses two baselines to measure evidence location Signup and view all the answers

Match the following sketch types with their alternate names:

Elevation Sketch = Side-view sketch Exploded Sketch = Cross-sectional sketch Overhead Sketch = Bird’s eye view sketch Final Sketch = Courtroom presentation sketch Signup and view all the answers

Match the following sketch descriptions with their respective sketch types:

Final Sketch = Polished and drawn to scale for presentation Rough Sketch = Preliminary outline drawn on-site without scale Exploded Sketch = Floor in the middle with walls drawn flat Three-Dimensional Sketch = Created using a computer program to show depth Signup and view all the answers

Match the following types of crime scene sketches with their descriptions:

Overview = Bird’s-eye view or floor plan Elevation = Vertical plane representing evidence on surfaces Exploded view = Combination of overview and elevation Rough sketch = Initial sketch not drawn to scale Signup and view all the answers

Match the following sketching concepts with their definitions:

Triangulation = Measuring distance between evidence and fixed points Legend = Key explaining symbols on the sketch Scale = Ratio that provides distance representation Perimeter = Outline of the area where the crime occurred Signup and view all the answers

Match the following measurements with their characteristics:

Direct measurements = Taken without altering the scene Scaled measurements = Represented accurately on the sketch Triangulated measurements = Utilizes two fixed points for accuracy Estimates = Approximate measures when exact data is unavailable Signup and view all the answers

Match the following components of the crime scene sketch with their respective details:

Location = 1956 Oak Street, Lithonia, Az 43256 Date = September 5, 2021 Time Start = 1:45 pm Time End = 5:17 pm Signup and view all the answers

Match the following sketching techniques with their characteristics:

Basic Shapes = Used to represent furniture and other large items. Labeling = Involves adding key details such as date and time. Measurements = Used to accurately position evidence within the scene. True North = Essential for orientation on the sketch. Signup and view all the answers

Match the following key elements in the crime scene sketching process with their descriptions:

Furniture Sketching = Involves using basic shapes to depict items. Evidence Numbers/Letters = Indicates specific evidence in the sketch. Crime Scene Diagram = Visual representation of the scene layout. Victim's Name = Included if known within the sketch details. Signup and view all the answers

What type of crime scene sketch provides a vertical view of the scene, such as blood stain patterns on walls?

Elevation sketch Signup and view all the answers

Which piece of equipment is essential for ensuring a crime scene sketch is drawn to scale?

Measuring devices Signup and view all the answers

What is the primary purpose of including true North and a scale of distance in a crime scene sketch?

To provide orientation and accurate scale for references Signup and view all the answers

Which type of sketch combines both an overview and elevation, laying the walls flat?

Exploded view sketch Signup and view all the answers

What is the first step in creating a crime scene sketch?

Draw an outline of the area Signup and view all the answers

What is the purpose of labeling the diagram in a crime scene sketch?

To indicate the date, time, location, and victim's name. Signup and view all the answers

When sketching evidence at a crime scene, what is a crucial step to take regarding evidence markers?

Sketch evidence marked with evidence markers and indicate their numbers/letters. Signup and view all the answers

What should be considered when triangulating evidence on a crime scene sketch?

Make two measurements from fixed points to each piece of evidence. Signup and view all the answers

In the rough sketching of a crime scene, which element is NOT explicitly included in the sketch process?

Including a photographic representation of the scene. Signup and view all the answers

What is typically provided on a reference card in the crime scene sketching process?

Sample cards which represent the evidence to be sought. Signup and view all the answers

Study Notes