Thursday 13: 13 little pieces of information about CSI
Before CSI became a thing, I was the one in highschool who used to take out forensic books in the library, filling notebooks up with information that I figured one day I would use in my books. I haven’t yet, but that doesn’t mean I won’t later on. I decided to crack open those notebooks and thought for this thursday thirteen, I would pull out 13 random things I thought was interesting.
1. Tunial capsules- bluish and red. They are very soluble in water and alcohol. Tunial is a central nervous system depressant and in ordinary doses the drug can act as a hypnotic. It takes affect in 15-30 mins and can last up to eleven hours.
2. You can get a fingerprint off a person’s skin for up to 90 mins.
3. Need to figure out how tall a person was or approximately the weight by their bones? I have formulas to determine that.
4. Descriptions of the 6 kinds of serial killers.
5. Figuring out time of death through various techniques. (temp, bugs, etc). Bugs can also give clues about drugs (i.e. if the body had cocaine, there were be some in the bugs as well).
6. 75% of victims can be identified by their dental records. Teeth can pinpoint race, age, lifestyle, diet and sometimes occupation.
7. When glass breaks, the glass showers toward the force, not away from it.
8. The point of blood splatter can indicate the direction in which the blood was moving. Round drops for instance, on the ground means the person was standing and not moving.
9. Most people are secretors, that means that their blood type is present in their body fluids. If the police find a cigarette or sweat stained hat, the crime lab can identify the suspect’s blood type.
10. Hair grows about a half an inch per month. From a strand of hair, the crime lab can determine whether it comes from a human or animal, the ethnicity of the person, whether the hair fell out or was pulled out, if the person was taking drugs, if the person has a disease, what part of the body the hair comes from, whether it’s real or from a wig, and whether hair has been dyed or bleached.
11. To speak even one word requires work of the vocal cords, palate, tongue, teeth, lips, nose, sinuses, and throat and jaw muscles. Even when a person disguises his voice, it does not change the way those muscles work and it cannot fool a voiceprint.
12. One expert figured that the circumstances of 2 people having the same fingerprints would happen only once in 466,037,700 years.
13. There are 3 types of prints: visible which are easily seen by the naked eye (i.e. a person who has dirt, blood or grease on his fingers and leaves visible prints), plastic which are those that leave an impression (i.e. in paint, glue or another pliable substance) and latent which are invisible (i.e. formed when perspiration and oils are secreted from small pores in the ridges of the fingerprint).