Unknown Substance Lab (1.14)
Substance: Cocaine
Appearance: White powder.
Texture/Smell?: Feels soft, no smell.
Indicator #1(Describe what happens):Yellow white liquid.
Indicator #2(Describe what happens): Dark liquid.
Indicator #3(describe what happens): White liquid.
Substance: Acetaminophen.
Appearance: White powder.
Texture/Smell?: Thick soft powder no smell.
Indicator #1(Describe what happens):Thick white liquid.
Indicator #2(Describe what happens): Light brown thick liquid.
Indicator #3(describe what happens): Bubbles.
Substance: Acetylsalicyclic Acid.
Appearance: White powder.
Texture/Smell?: No smell, feels soft.
Indicator #1(Describe what happens):Bubbley.
Indicator #2(Describe what happens): Bubbles.
Indicator #3(describe what happens): Bubbles.
Substance: Meth.
Appearance: Crystally white.
Texture/Smell?: No smell, feels grainy.
Indicator #1(Describe what happens):Thick liquid/clear.
Indicator #2(Describe what happens): Carmel looking liquid.
Indicator #3(describe what happens): Clear thick liquid.
Substance: Ecstasy.
Appearance: Crystally white.
Texture/Smell?: Thick grainy, no smell.
Indicator #1(Describe what happens):Thicker crystals.
Indicator #2(Describe what happens): Brown thick crystals.
Indicator #3(describe what happens): Thicker crystal.
Substance: Unknown???
Appearance: White powder.
Texture/Smell?: Soft, no smell.
Indicator #1(Describe what happens):Thick consistensy.
Indicator #2(Describe what happens): Gets dark and black and hard.
Indicator #3(describe what happens): Bubbles.
The unknown substance is Acetysalicyclic Acid.
Appearance: White powder.
Texture/Smell?: Feels soft, no smell.
Indicator #1(Describe what happens):Yellow white liquid.
Indicator #2(Describe what happens): Dark liquid.
Indicator #3(describe what happens): White liquid.
Substance: Acetaminophen.
Appearance: White powder.
Texture/Smell?: Thick soft powder no smell.
Indicator #1(Describe what happens):Thick white liquid.
Indicator #2(Describe what happens): Light brown thick liquid.
Indicator #3(describe what happens): Bubbles.
Substance: Acetylsalicyclic Acid.
Appearance: White powder.
Texture/Smell?: No smell, feels soft.
Indicator #1(Describe what happens):Bubbley.
Indicator #2(Describe what happens): Bubbles.
Indicator #3(describe what happens): Bubbles.
Substance: Meth.
Appearance: Crystally white.
Texture/Smell?: No smell, feels grainy.
Indicator #1(Describe what happens):Thick liquid/clear.
Indicator #2(Describe what happens): Carmel looking liquid.
Indicator #3(describe what happens): Clear thick liquid.
Substance: Ecstasy.
Appearance: Crystally white.
Texture/Smell?: Thick grainy, no smell.
Indicator #1(Describe what happens):Thicker crystals.
Indicator #2(Describe what happens): Brown thick crystals.
Indicator #3(describe what happens): Thicker crystal.
Substance: Unknown???
Appearance: White powder.
Texture/Smell?: Soft, no smell.
Indicator #1(Describe what happens):Thick consistensy.
Indicator #2(Describe what happens): Gets dark and black and hard.
Indicator #3(describe what happens): Bubbles.
The unknown substance is Acetysalicyclic Acid.
Online Blood typing Lab
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the blood at the crime scene was B+ meaning it could either belong to Anna's or Alex
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1.1.3: Fingerprinting Techniques
1.1.3: Fingerprinting Techniques
In a fingerprint there is a ridge, core, and a delta. The ridge are black lines that form the pattern, the core is the middle of the fingerprint, the delta is three areas convert into a triangle shape. There are three basic fingerprint patterns, an arch, left/right loop, and a whorl. Other chararacteristics are the ridge ending, bifurcation, and a dot. The ridge ending is where a ridge ends, a bifurcation is when one ridge turns into two, and a dot is where it starts and stops in one spot. The first step in fingerprint identification is to thoroughly analyze and mark the minutae. The evaluation phase is deciding if both fingerprints are the same or have matching points. An interesting fact that I learned is that you can have many types of fingerprints on one hand.
New Vocabulary:
Bifurcation
Ridge
Core
Delta
Arch
Left/Right loop
Whorl
Dot
Minutae
The fingerprint at the crime scene is Alex Garcia's fingerprint. I know because I mark ten minutae between Alex Garcia's and the crime scene's fingerprint.
How to take a Latent print: You can take a latent print by dusting a selected area with black powder and peeling it off with tape.
In a fingerprint there is a ridge, core, and a delta. The ridge are black lines that form the pattern, the core is the middle of the fingerprint, the delta is three areas convert into a triangle shape. There are three basic fingerprint patterns, an arch, left/right loop, and a whorl. Other chararacteristics are the ridge ending, bifurcation, and a dot. The ridge ending is where a ridge ends, a bifurcation is when one ridge turns into two, and a dot is where it starts and stops in one spot. The first step in fingerprint identification is to thoroughly analyze and mark the minutae. The evaluation phase is deciding if both fingerprints are the same or have matching points. An interesting fact that I learned is that you can have many types of fingerprints on one hand.
New Vocabulary:
Bifurcation
Ridge
Core
Delta
Arch
Left/Right loop
Whorl
Dot
Minutae
The fingerprint at the crime scene is Alex Garcia's fingerprint. I know because I mark ten minutae between Alex Garcia's and the crime scene's fingerprint.
How to take a Latent print: You can take a latent print by dusting a selected area with black powder and peeling it off with tape.
1.1.3: Hair and Fiber Analysis
![Picture](/uploads/6/0/8/6/60861307/189521.gif?250)
Hair and fiber have different characteristics. There are some ways to identify if it is a hair or if it is a fiber. Only hair has a medulla. If there is not medulla that means it is a fiber. In a hair there is a medulla and a cuticle. The three main cuticle patterns are a coronal which are common in small bats or rodents. Spinous which are common in seals and cats. Imbricate is common in a human and other animals especially dogs. The cuticle can identify what species the hair is.
Interesting Fact:
Medulary Index = diameter of medulla.
diamater of hair.
New Vocabulary:
Medulla
Cuticle
Coronal
Spinous
Imbricate
When I looked at one of my hair strands under the microscope, I could barely see the cuticle and the medulla was full throughout the strand, it also looked yellow, because my hair is blonde.
The hair at the crime scene is Anna's. I know because both strands have a medulla in the same spot and the same color.
Shoe prints:
The shoe print found at the crime scene belongs to Anna Garcia. I know because the pattern of the shoe matches the pattern found on the floor next to Anna's body.
Interesting Fact:
Medulary Index = diameter of medulla.
diamater of hair.
New Vocabulary:
Medulla
Cuticle
Coronal
Spinous
Imbricate
When I looked at one of my hair strands under the microscope, I could barely see the cuticle and the medulla was full throughout the strand, it also looked yellow, because my hair is blonde.
The hair at the crime scene is Anna's. I know because both strands have a medulla in the same spot and the same color.
Shoe prints:
The shoe print found at the crime scene belongs to Anna Garcia. I know because the pattern of the shoe matches the pattern found on the floor next to Anna's body.
Stride Analysis:
![Picture](/uploads/6/0/8/6/60861307/3842767.png?418)
To identify the height of someone can be determined by the shoe size. The bigger the foot, means the longer legs, which means the person is taller. The smaller foot size means the legs are smaller, which makes the person shorter.
To identify the height of a person you can measure the average stride length. The larger the stride length is shows that the person has longer legs, which means that they're taller. The shorter the stride is shows that their legs are shorter, which means their height is shorter.
To identify the height of a person you can measure the average stride length. The larger the stride length is shows that the person has longer legs, which means that they're taller. The shorter the stride is shows that their legs are shorter, which means their height is shorter.
DNA Extraction Lab
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My DNA and the strawberry's DNA
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What is DNA?
DNA short for deoxyribonucleic acid is a self-replicating material found in mostly all living organisms and is the carrier of genetic information.
it's shape is that of a double helix
it's shape is that of a double helix
Conclusion Questions
1. Purines have a two ring structure and pyrimidines have a one ring structure making it smaller compared to the purines
2.Because they fit together because they have matching/connecting structures.
3. Yes it is possible to know the other sequence as long as you know which nucleotide goes with which like A connect to T and C connects to G.
4. The DNA models looked the same but they were not identical because some were set up differently then others. this relates to human because our DNA structures look the same they don't all have the same genes as each other
1. Purines have a two ring structure and pyrimidines have a one ring structure making it smaller compared to the purines
2.Because they fit together because they have matching/connecting structures.
3. Yes it is possible to know the other sequence as long as you know which nucleotide goes with which like A connect to T and C connects to G.
4. The DNA models looked the same but they were not identical because some were set up differently then others. this relates to human because our DNA structures look the same they don't all have the same genes as each other
Whose DNA is it?
At the crime scene the blood found was B+ and both Anna and Alex had that blood type. further test hjad to be ran to look even closer into the blood to see the coding on it so we can get the exact numbers on it to find the right owner of the blood which turns out to be Anna
Was it a crime?
The case that we have been studying is the case of Anna Garcia. She was found dead in her house at 9:56 a.m. . She was last seen the morning before at 6:30 a.m. walking her dog. The person who called the police is the neighbor who heard the dog bark for 2 hours. before calling the police. He had noticed that she was wearing a jacket even though they were experiencing a heat wave. She was found face down and on the floor next a lot of relevant evidence.
Found next to Anna's body were fingerprints. Fingerprints are used when found at a crime scene to help identify the potential suspect or if it is the victims fingerprints. This method has been used to solve crimes since the 19th century. Fingerprints are the little lines found on the tips of your finger. When they are found the detectives dust it them they put tape on it and collect the little details that was found on the fingerprint which are the little details like dots, bifurcations, bridge, fork, ending ridge, hook, eye, double fork, delta, and a triple fork. These little details are called minutiae. The fingerprints found at the crime scene were Alex's which was her soon to be ex-husband.
The other procedure we did in this case was blood typing. Blood typing is figuring out what type of protein's and which type of blood a person is. There is four types of blood you can have:
~type A ~type AB
~type B ~type O
These types of blood is determined when you mix your blood with antibodies against type a and b then they also figure out what your RH is which determines whether your positive or negative. When getting the blood we determined that it was B+ which was the same as Alex's and Anna's.
Footprints were also found at the scene. Shoeprints can determine who's shoe was it and if it was the victim or the suspect. The way you figure out who's shoeprint was who's is by just comparing the shoes to the shoeprints. The shoeprints that were found at the crime scene were Anna's.
Hair was found at the crime scene as well. The way you can make an inference on who's hair was it is by finding the difference between if its and animal, human, or fibers and the way you can determine which is which is by the texture of the hair. The most important thing is telling whether who's hair is it. You can look at the medulla and you will know who's hair it is. The medulla is the line that is found inside the strand of hair. The cuticle is part of this as well. The cuticle is the outside of the strands. The hair that was found at the scene was Anna's.
The pills found on the table were found at the crime scene too. The way you can determine what is what is by mixing chemicals with other things along with the unknown substance to see what has the same effects so you can know what it is. The pills were found to be aspirin (acetlylsalicylic acid).
Blood spatter was also found at the crime scene. You can take the blood spatter and know where it came from. The higher it came from the bigger the spatter gets. You can use blood spatter to determine what weapon was used. The blood spatter found was coming from Anna's head.
DNA analyzing was also done on the case. Alex and Anna had the same blood type. The detectives preformed a process called Gel Electrophoresis. Its when DNA (with a negative charge) goes to the positive side of the gel. The small strands moved faster but the log ones went slower. In this case we found that it was Anna's blood that was found.
By what we have collected from the evidence and the information that was given to us I have made a conclusion of what has happened to Anna. Since she had diabetes and that he stomach was swollen I think she was pregnant she passed out after coming home from her walk and hit her head on her way down and bled out of from her head. The only problems though is that she could have been bloated, and I don't have a sufficient amount of evidence to back this up. If I were an investigator I would not have made this final conclusion for her death because there isn't enough evidence and we don't know what is wrong with her internally. We have pretty much found what we could with he labs we have done.
In conclusion Anna was found dead in her house at 9:56 a.m. The person that called the police was the neighbor. Alex was the last person to see her the night before she died. Her death was accidental because since she had diabetes her blood pressure was possibly low when she got back from walking her dog, her stomach was bloated so she was probably pregnant so she was probably out of breath too so when she went to go use her medicine and passed out and on her way down she hit her head on the table got up walked around and bled to death from her head.
When her death is finalized the investigators should look back at the evidence very carefully to actually finalize her death. Its important for them to do this so if the go back and find something it can change the whole investigation. Anna had a lot of people that had a motive to kill her they could have made it look like an accident for them to get away from it.
It all depends what else information we get for them to proceed in the investigation. Unless it has a murder that there really isn't anywhere else to go because if it was natural, suicide, or an accident there isn't a person you need to convict. Until further information there isn't anything to further investigate form the conclusion I have come to.
Found next to Anna's body were fingerprints. Fingerprints are used when found at a crime scene to help identify the potential suspect or if it is the victims fingerprints. This method has been used to solve crimes since the 19th century. Fingerprints are the little lines found on the tips of your finger. When they are found the detectives dust it them they put tape on it and collect the little details that was found on the fingerprint which are the little details like dots, bifurcations, bridge, fork, ending ridge, hook, eye, double fork, delta, and a triple fork. These little details are called minutiae. The fingerprints found at the crime scene were Alex's which was her soon to be ex-husband.
The other procedure we did in this case was blood typing. Blood typing is figuring out what type of protein's and which type of blood a person is. There is four types of blood you can have:
~type A ~type AB
~type B ~type O
These types of blood is determined when you mix your blood with antibodies against type a and b then they also figure out what your RH is which determines whether your positive or negative. When getting the blood we determined that it was B+ which was the same as Alex's and Anna's.
Footprints were also found at the scene. Shoeprints can determine who's shoe was it and if it was the victim or the suspect. The way you figure out who's shoeprint was who's is by just comparing the shoes to the shoeprints. The shoeprints that were found at the crime scene were Anna's.
Hair was found at the crime scene as well. The way you can make an inference on who's hair was it is by finding the difference between if its and animal, human, or fibers and the way you can determine which is which is by the texture of the hair. The most important thing is telling whether who's hair is it. You can look at the medulla and you will know who's hair it is. The medulla is the line that is found inside the strand of hair. The cuticle is part of this as well. The cuticle is the outside of the strands. The hair that was found at the scene was Anna's.
The pills found on the table were found at the crime scene too. The way you can determine what is what is by mixing chemicals with other things along with the unknown substance to see what has the same effects so you can know what it is. The pills were found to be aspirin (acetlylsalicylic acid).
Blood spatter was also found at the crime scene. You can take the blood spatter and know where it came from. The higher it came from the bigger the spatter gets. You can use blood spatter to determine what weapon was used. The blood spatter found was coming from Anna's head.
DNA analyzing was also done on the case. Alex and Anna had the same blood type. The detectives preformed a process called Gel Electrophoresis. Its when DNA (with a negative charge) goes to the positive side of the gel. The small strands moved faster but the log ones went slower. In this case we found that it was Anna's blood that was found.
By what we have collected from the evidence and the information that was given to us I have made a conclusion of what has happened to Anna. Since she had diabetes and that he stomach was swollen I think she was pregnant she passed out after coming home from her walk and hit her head on her way down and bled out of from her head. The only problems though is that she could have been bloated, and I don't have a sufficient amount of evidence to back this up. If I were an investigator I would not have made this final conclusion for her death because there isn't enough evidence and we don't know what is wrong with her internally. We have pretty much found what we could with he labs we have done.
In conclusion Anna was found dead in her house at 9:56 a.m. The person that called the police was the neighbor. Alex was the last person to see her the night before she died. Her death was accidental because since she had diabetes her blood pressure was possibly low when she got back from walking her dog, her stomach was bloated so she was probably pregnant so she was probably out of breath too so when she went to go use her medicine and passed out and on her way down she hit her head on the table got up walked around and bled to death from her head.
When her death is finalized the investigators should look back at the evidence very carefully to actually finalize her death. Its important for them to do this so if the go back and find something it can change the whole investigation. Anna had a lot of people that had a motive to kill her they could have made it look like an accident for them to get away from it.
It all depends what else information we get for them to proceed in the investigation. Unless it has a murder that there really isn't anywhere else to go because if it was natural, suicide, or an accident there isn't a person you need to convict. Until further information there isn't anything to further investigate form the conclusion I have come to.