This document discusses the science of forensics and provides examples of physical evidence that can be analyzed, such as fingerprints, hair samples, fabric fibers, soil remains, and blood. It explains how forensic scientists use tools from various sciences like earth science, chemistry, physics, and biology to analyze physical evidence left from crimes or medical mysteries. The document also outlines a procedure for students to take fingerprints using graphite and tape to understand the importance of details in forensic evidence gathering and how fingerprints can be identified and matched to criminals in databases.
3. Lesson Objectives
• Understand the importance of details when
gathering evidence in forensics science.
• Understand the relationship of earth science,
chemistry, physics, and biology to forensics
science.
7. Examples of physical evidence:
• Helps understand the fingerprints, hair
samples, fibers from fabric, remains of soil,
blood.
• Samples from trained professionals help
analyze person or persons who passed away,
can identify fingerprint and match it to a
person who committed a crime in the past
and have it on file.
8. CONTINUATION
• Hair & fiber samples can be looked at the
microscope, can reveal the texture
• Soil samples can be analyzed whether the
person is nearby or in a different environment
before being present at a crime scene.
9. Procedure:
• Rub the pencil on the scratch paper until there
is dark smudge of graphite.
• Begin with the little finger, have each student
rub it on the smudge until the fingertip is
covered with smudge.
• Place a small piece of tape over the fingertips.
Press the tape down gently.
• Carefully remove the tape and stick it on a
piece of white paper. Repeat the process.
