1.Introduction: The Case That Changed Everything
2.DNA Structure & Genetics Fundamentals🔒
3.Why DNA Works for Identification🔒
4.Biological Evidence & Body Fluids🔒
5.The DNA Analysis Workflow🔒
6.STR Profiling: Reading a DNA Profile🔒
7.Interpreting Profiles & Match Probability🔒
8.Specialised Techniques: LCN, mtDNA, Y-STR & Familial🔒
9.DNA Databases & Ethics🔒
10.Case Study & Final Assessment🔒

Introduction: The Case That Changed Everything

Slide 1 of 10

Title

Forensic DNA Analysis - From Crime Scene to Courtroom
Lesson 1: The Case That Changed Everything
A free introduction to the science that transformed criminal investigation.

Check your understanding

Answer the questions, then submit to see your score.

1.What made the Pitchfork investigation historically important?

It was the first case to use fingerprintsIt produced the first DNA exoneration, first mass screen, and first DNA convictionIt was the first case tried without a juryIt was the first use of CCTV evidence

2.In the case, what did DNA evidence first prove about the man who had confessed?

That he was guilty of both murdersThat he was innocent - he did not match either sceneThat he was related to the victimThat the samples were contaminated

3.Why did conventional 1983 techniques fail to identify the offender?

Blood grouping could only narrow the pool to roughly 10% of menThere was no biological evidence at the scenesThe suspect had no criminal recordDNA had not yet been discovered

4.What is one key lesson the case teaches about DNA evidence?

DNA is only useful for catching offendersDNA evidence never makes mistakesDNA can both convict the guilty and protect the innocentDNA evidence replaces the need for a trial

Unlock next lesson →

Double Loop Forensics

Forensic science courses & consulting

Professional forensic science training, consultations and supplies.

Learn

All courses
Forensic DNA Analysis
Articles
Free intro course

Services

Book a consultation
Forensic supplies

Account

Sign in
My learning

Terms Privacy Refunds