TSA Forensic Science 2025 Exam Graded A+, Exams of Forensics

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TSA Forensic Science 2025 Exam

Graded A+

Accelerant - ANSWER-What is used to start and maintain a fire. Acid Phosphate - ANSWER-An enzyme in many body tissues; used as screening technique for semen and vaginal tissue. They have higher concentration of Acid Phosphates. Admissibility of scientific evidence - ANSWER-What evidence can and can't be counted in a court. Algor mortis - ANSWER-Postmortem cooling of the body Anthropology - ANSWER-Study of human remains to help solve a crime. Anthropophagy - ANSWER-the eating of human flesh by animals/insects Apneic - ANSWER-not breathing Arson - ANSWER-Criminal offense of setting fire to property Asphyxia - ANSWER-Suffocation Assault - ANSWER-A violent attack Associative evidence - ANSWER-Seeks to establish an association between people Autopsy - ANSWER-Examination of a body to find the cause of death. Benzidine - ANSWER-Chemical that can be used to detect blood very accurately, but is not used because it is very toxic. Blood - ANSWER-When initially shed, blood is red, and as it dries, it darkens to red- brown then to brown. Blood splatter analysis includes - ANSWER-Size, shape, and the type of surface they hit Carotid - ANSWER-One of the two main arteries in the neck Criminalistics - ANSWER-Examination of evidence in a crime laboratory

Determining time of death - ANSWER-1. Rigor Mortis

2. Anthropophagy
3. Lividity
4. Vitreous Chemistry
5. After death, the body temperature rises slightly, the gradually lowers to room temperature. DI - ANSWER-Death Investigator DOA - ANSWER-dead on arrival Drip Stain - ANSWER-Caused by force of gravity only Dyadic Death - ANSWER-Homicide followed by the suicide of the perpetrator ECG - ANSWER-electrocardiogram Elliptical - ANSWER-elongated; longer than it's width EMT - ANSWER-emergency medical technician Fibrinogen - ANSWER-a soluble protein present in blood plasma Forensic Ballistics - ANSWER-Analysis of evidence relating to fire arms Forensic Botany - ANSWER-Study of plant-based evidence Forensic Entomology - ANSWER-Application of the study of the biology of insects. Forensic Odontology - ANSWER-Evaluation of dental evidence Forensic Pathologist - ANSWER-Trained physician who deals with diagnosis of disease and cause of death Forensic Podiatry - ANSWER-Application of specific podiatrist knowledge, involving foot, ankle, and lower body to help solve a case. Forensic Toxicology - ANSWER-The determination of a toxic substance in human tissue How A crime Scene Investigation is conducted - ANSWER-1. Identify the scene dimensions and identify potential safety hazards
6. Establish security - Close off the crime scene
7. Plan, Communicate, and coordinate - develop theories on what occurred. Develop a strategy to collect the evidence.
8. Conduct a primary survey
9. Document and process the scene - Do the sketch and collect evidence

The harder and less porous the surface - ANSWER-The less blood will splatter The same amount of blood hitting different surfaces - ANSWER-Will cause different splatter patterns The softer and more porous the surface - ANSWER-The more blood will splatter Tommie Lee Andrews - ANSWER-First US trial where DNA evidence was admissible. Transfer stains - ANSWER-A blood contaminated object contacting a surface Vitreous chemistry - ANSWER-Analyzing the fluid in the globe of the eye