NCIS Sacatepequez: Scene 1 - Crime Scene Reasearch and Evidence Recollection
NCIS Sacatepequez: Scene 2 - Chemical Evidence Analysis and Suspect Profile
NCIS Sacateapequez: Scene 3 - Crime Scene Reconstruction based on Chemical Evidence and Interview with Suspects
Project Name: NCAIS (New Chemical AIS Investigative Service)
Grade: 11th Grade Chemistry
Teacher: Mr. Fernando Aragón
Objective: The objective of the project is to apply chemical analytical tools to the research process followed in order to determine the identity and composition of chemical substances (clues) found during the investigative stage of a crime scene, after a murder has been committed.
Chemistry students had the chance to plan and execute a simulated crime scene where a murder has occured. In their roles as NCAIS agents, Chemistry students must collect samples of chemical substances that might give guidelines in order to connect the murder to a possible suspect.
Students were divided by groups and they chose their possible list of suspects (2 or 3 maximum). They needed to recreate a crime scene where 2 unknown chemical substances are found by the detectives. After completing the collecting process of evidence, students must apply simulated chemical tests to the samples through the manipulation of variables and constants in virtual laboratory modules such as the titration of unknown liquids, or a test of gaseous chromatography in order to determine the chemical composition of a mysterious clue. Students were able to choose which virtual Lab module they ran in order to determine the possible origin of the substance, and how this is linked to a possible suspect of the murder.
Finally, after students gather data from their simulated Lab analysis (using actual virtual lab modules), students reconstructed the crime scene and they stated a possible hypothesis of the motivations that the suspect had for committing the crime.
Participation of AIS Community: the visitors to the school's web page and the FB portal (students, parents, and visitors) will be able to watch the whole investigation ONLINE (3 video clips uploaded for the 3 different stages of the investigation) by group. Every 4 days a new investigation will be posted on the web site of the school.. At the end, visitors must cast a vote in the electronic poll that appears after watching the 3 video clips so they will declare the suspect as "GUILTY" or "NOT GUILTY" according to the chemical evidence presented by the students in the investigation. Depending on the decision of this "virtual jury", the suspect could be convicted by the charges presented by the detectives, or could be released if the suspect is declared "NOT GUILTY". The jury has the fate of the suspect in their hands.
3 days after the voting is open, the votes casted will be counted and a verdict will be broadcasted online. The chemical detectives will explain at the end if the jury was right or not.
Could you decide if the suspect is guilty or not guilty? Suspect's fate is up to you.