Crime Scene investigation

Name
Instructor
Course
Date
Crime scene Investigation
Abstract
This lab report seeks to determine the cause of death of the Victim and exactly try’s to establish who is responsible for Nina’s death. There are four identified suspects whose blood is being tested and compared with blood found at the murder scene. Moreover, the site of the accident has fluids samples. The kitchen floor formed the crime scene 1 while the fluid samples found on the victim formed the second crime scene. Through carefully lab report, the exact suspect responsible for the death of the victim will be identified. This will be determined by looking at the different DNA samples. The suspects have varying blood types A, AB, and B while the victim has blood type O which is a universal donor. The determination of the suspect will involve looking at the specific blood type at the scene of the accident or death, determination of the form of clumping of blood mixture due to blood contact and the matching of the blood against those of the suspects.
Introduction
Nina has been murdered. There are suspects attached to the case with one, in particular, being suspected to be at the scene of the accident. The prime suspect Joseph is of blood type A- while there are other three suspects, Chris, Lisa and Thomas whose relationship with the victim before the death is known. The lab report, therefore, seeks to identify who was involved in the death of the victim. Chris frequently quarrels with his girlfriend might have resulted in him killing his girlfriend, or the secretary might have been involved in the plot to kill the victim to.

Hypothesis
Through the lab testing and report. Then results are expected to pinpoint who exactly murdered the victim through the typing of the blood samples of both suspects. The blood samples are expected to be compared with the blood samples collected at the scene of the accident or death of Nina. The predictions are appropriate to the experiment in neat it will eliminate the other suspects from being pinned at the scene of the murder victim thus narrow down the investigation to a particular individual.
The method used
The method used involved the use of four dishes that gave each three tests. Each of the four dishes is labeled basing on the blood sample of each suspect. The blood samples are each added with the anti-serums both with A and B and lastly with drops of anti-D on the different three blood samples of the suspects. This is done to check the occurrence of clumping of the blood due to the ant-reaction.
Results
Suspect sample Reacts With Anti-A Serum?
Shows Clumping (Yes or No) Reacts With Anti-B Serum?
Shows clumping?
(Yes or No) Reacts with Anti-D Serum?
Shows Clumping?
(Yes or No) This is which
Type of blood?
1.joseph Yes-no clumping No-clumping Yes-no clumping A-
2chris Yes-no clumping No-Clumping No- clumping A+
3.lisa Yes-no clumping Yes-no clumping No-no clumping AB-
4. Thomas No- Clumping Yes-no clumping Yes-no clumping B-
Second test results
Suspect Matches Crime scene sample (Yes or No)
1.(Joseph) No
2. (Chris) No
3 (Lisa) No
4(Thomas) Yes
A Description
Joseph is no longer a suspect because he has blood group A- hence his blood type does not match either of the scenes. Chris is not a suspect due to the same case. Lisa is not a suspect due to having blood group AB- that does not match either scene. However, Thomas is the suspect since the blood group B- match the scene of the victim’s murder.