Division: B – Middle School
NC Essential Standards Alignment: 6.P.2, 8.P.1, Science as Inquiry
Event Rules: See National Rules
Event Score Sheet: None
National Event Page: Here
Required Materials: Students must bring and wear goggles, an apron or a lab coat, and have skin covered from the neck down to the wrist and toes. Gloves are optional; but if a host requires a specific type, they must notify teams. Pants should be loose fitting; if the host has more specific guidelines they will notify teams in advance of the tournament. Shoulder length hair or longer must be tied back. Students who unsafely remove their safety clothing/goggles or are observed handling any of the material or equipment in an unsafe manner will be penalized or disqualified from the event.
NC Only will be focusing on:
Qualitative Analysis: solids and non-powdered metals
Polymer Testing: hair and fibers
Crime Scene Physical Evidence.
Regionals will feature 2-3 out the following 3 topics. State will feature 3-4 out of the following topics: DNA evidence, shoeprints and tire trends, soil, and/or spatters.
Additional questions may be asked on general lab safety and procedure and chemical and physical properties and common uses of the substances in part 3.c.
For the Chemistry events, it states that teams may bring any or all of the items listed – are teams only permitted to have the checked items in their kits? Or, may they have all items on the list even if they are not checked.
Given a scenario, a collection of evidence, and possible suspects, students will perform a series of tests. The test results along with other evidence will be used to solve a crime.
Teams MUST bring chemical splash goggles, safety gear, and a writing instrument. Teams may also bring spot plates, test tubes and test tube holders or any containers in which they can perform the tests, popsicle sticks, spatulas, plastic spoons, etc. for handling materials, pH paper, a ruler, hand lenses or loupes, paper towels, a disposable cup for solid waste, writing instruments, 1 sheet of paper per person with information in any form from any source. Sheet protectors are encouraged. Each team may bring any or all of the items listed as Recommended Lab Equipment for Division B Chemistry Events, posted on soinc.org. Students not bringing these items will be at a disadvantage. The supervisor will not provide them. Teams may bring only specified items. Other items not listed, including calculators, are prohibited. The event supervisors will check each team’s equipment, confiscate non-allowed items, and have the right to penalize the team up to 10% if additional equipment is brought to the event.
***SAFETY ISSUE*** In addition to OSHA approved chemical splash goggles with indirect vents, teams also MUST wear closed toed shoes, pants/skirts that cover legs to the ankle, AND a lab coat/apron that reaches below the knee or they will not be allowed to participate. Long hair must be tied back. In addition, any teams seen handling materials in an unsafe manner will be disqualified from the event. ***SAFETY ISSUE***
Event Leaders will provide a proper lab environment, all evidence to be tested, additional equipment necessary to perform tests on the evidence, the official test and answer sheet.
High score wins. Points are earned for proper identification of evidence as well as analysis of the crime. Ties will be broken by the best Qualitative Analysis (3.a.) score. The only category that we aren’t covering in NC at Regionals is Part E, Chromatography for 5%, and since percentages are approximate, those points will end up distributed in other sections where it makes sense.
– Be sure to follow all safety requirements! Safety issues will NOT be arbitrated.
– Event leaders will not answer questions on testing procedures (for example- how to perform a burn test on fibers) nor will they provide a copy of the rules or a list of the possible unknowns. Teams should already know procedure, and should include a list of the possible unknowns in their allowed notes if they cannot remember. Event leaders WILL answer safety questions, and stop students from performing a test in an unsafe manner.
General sites on Forensics and Crime Busters
Real World—Articles on aspects of crime scene data collection
Links to forensic activities for students
Shoe and Tire Prints
Lab activity on shoe and tire prints
2014 State Forensics Test – powders, toolmarks/impressions, firearms/ballistics
2010 Regional Forensics Test- Stolen Steelers
2010 Crimebusters Regional Test
2013 Crimebusters State Test
2014 Crimebusters State Test