Crime Scene Investigation Techniques

The video tutorial guides viewers through a systematic approach to crime scene investigation. It emphasizes the importance of using a flashlight to mark and observe evidence, conducting logical and methodical searches, and distinguishing important evidence. The tutorial also covers the use of alternative light sources (ALS) for secondary searches and the importance of thorough documentation. The goal is to ensure all probative evidence is identified and preserved without contamination.

What is the primary purpose of using a flashlight during a crime scene investigation?

• To create a dramatic effect

• To scare away intruders

• To mark evidence and observe the scene

• To signal for help

Why is it important to conduct searches in a systematic manner?

• To confuse potential suspects

• To finish the task quickly

• To avoid missing evidence

• To impress the team

What should investigators distinguish between at a crime scene?

• Important and unimportant items

• Old and new furniture

• Bright and dull colors

• Loud and quiet noises

What tool can be used during a secondary check to find trace evidence?

• An ALS (Alternate Light Source)

• A metal detector

• A stethoscope

• A magnifying glass

What type of goggles should be used with an ALS to find evidence?

• Red goggles

• Orange goggles

• Green goggles

• Blue goggles

Why is it crucial to document evidence with photographs and sketches?

• To make the scene look interesting

• To confuse the suspects

• To ensure evidence is preserved and recorded

• To create a scrapbook

What is a common characteristic of fragile evidence like hair and fibers?

• They are heavy

• They are easily moved by static electricity

• They are indestructible

• They are brightly colored

What should be done during a thorough recheck of the crime scene?

• Ignore the furniture

• Move furniture to find hidden evidence

• Focus only on the obvious evidence

• Leave the scene as it is

What is the purpose of moving items like cushions during a recheck?

• To clean the area

• To find hidden evidence

• To rearrange the scene

• To make the scene look tidy

What should be done once all evidence is collected and documented?

• Ensure a complete set of evidence is available

• Invite the public to view the scene

• Rearrange the furniture

• Leave the scene immediately