Scientific Method

1
Scientific Method

• SRO DiLorenzo "Officer D"

2
Scientific Method

• Stating the Problem
• Gathering Information
• Form a Hypothesis
• Perform Experiments to Test Hypothesis
• Record Data and Analyze
• State a Conclusion
• Repeat the work

3
Stating the Problem

• What is the Problem?
• What are we trying to figure out?

4
Gathering Information

• Crime Scene Tools
• Pictures
• Fingerprints
• Measurements/Triangulation
• Report Writing
• Follow Up/Interviews/Interrogation
• Observations

5
Forming a Hypothesis

• What happened?
• Who Did it?
• How?
• Where?
• Why?

6
Performing Tests

• Variables
• Fingerprint Test/AAFIS
• DNA Tests
• Confessions
• Trial
• NCIC/Criminal History

7
Observation

• 5 Senses
• Quantitative
• Qualitative
• Classification

8
Recording Data

• Incident Report
• Crime Scene Log
• Property/Evidence Sheet
• Statement Sheet
• Supplemental Reports

9
Stating a Conclusion

• What Happened?
• Who Did it?
• How?
• Why?
• Prepare for trial !!!