Page 7 - Stained With Suspicion Blood Detection
P. 7
Teaching
Timeline
GROUNDWORK
Before conducting this laboratory exercise, the details of The Investigation should be shared with the class to
provide the context of the crime. Covering this material once should be sufficient for all laboratory modules.
DAY 3
SCHEDULE 1:
This lab schedule is designed to Discuss the experiments that were performed
take 5 days, with one hour of class on the previous day. Discuss the substances
time per day. that created a false positive and the impact this
might have on crime scene investigations.
Cover the background material on blood
detection and evidence processing, focusing on
DAY 1 evidence processing. If additional resources are
required, some may be found on the Resources
Cover the background material on Blood page on www.LyleAndLouise.com.
Detection and Evidence Processing, focusing
on blood detection.
Distribute lab procedures. DAY 4
Assign pre-lab questions for homework. Instruct students to follow the procedures for
Lab 2 while completing the data collection sheet,
then assign the post-lab questions.
DAY 2
If time permits, discuss the results of this activity.
Review the lab procedures and the data
collection sheet. Emphasize that students
must observe the reaction within 3 minutes or DAY 5
consider the test invalid.
Discuss student theories about the case.
Instruct students to follow the lab procedures
for Lab 1 and record their data on the data If this is your only lab exercise in The Mystery of
collection sheet. Lyle and Louise, prepare for a mock trial.
THE MYSTERY OF LYLE AND LOUISE 7
