Crime Scene Investigation Principles

This video tutorial educates viewers on the Seven S's of Crime Scene Investigation: secure the scene, separate the witnesses, scan the scene, see the scene, sketch the scene, search for evidence, and secure the collected evidence. Each step is crucial for ensuring a thorough and accurate investigation, preventing evidence contamination, and aiding in the conviction of criminals. The tutorial details the roles and responsibilities of law enforcement at a crime scene, emphasizing the importance of documentation, systematic searching, and proper evidence handling.

What is the primary goal of the Seven S's in crime scene investigation?

• To ensure a quick investigation

• To reduce the cost of the investigation

• To maintain the integrity of the investigation

• To involve as many officers as possible

Why is it crucial to secure the crime scene?

• To speed up the investigation

• To allow media access

• To prevent evidence contamination

• To let witnesses gather

What is the purpose of separating witnesses at a crime scene?

• To allow them to discuss the event freely

• To prevent them from influencing each other's statements

• To make them feel comfortable

• To ensure they remember the event better

What is the main objective when scanning the crime scene?

• To sketch the scene

• To take immediate photographs

• To locate potential secondary crime scenes

• To find the primary crime scene

Why are photographs taken from different perspectives at a crime scene?

• To create a 3D model

• To capture the scene artistically

• To document the scene comprehensively

• To confuse potential suspects

What should be included in a crime scene sketch?

• A timeline of events

• A list of witnesses

• Cardinal directions and measurements from landmarks

• Only the main objects

Which search pattern is most commonly used in crime scene investigations?

• Circular

• Zigzag

• Grid and quadrant

• Random

What is the correct way to package evidence containing biological matter?

• In glass jars

• In plastic bags

• In metal containers

• In paper bags or cardboard boxes

Why must evidence be sealed with a signature and date?

• To add a personal touch

• To make it easier to open

• To prevent tampering

• To make it look official

What happens to evidence after it is collected and packaged?

• It is discarded

• It is given to the media

• It is sent to the crime lab or stored in the evidence room

• It is displayed in court immediately