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Blood evidence can help to identify the suspect who comitted the crime, (especially in regard to their unique DNA which is found in the blood).
you need many copies of DNA for DNA fingerprinting
the number of adenine will be equal to the number of guanine
my grandpa had to take necrology before he could become a crime scene investigator
Physical evidence is a V-E-R-Y broad term that describes any and all physical manifestations of whatever crime may have been commited or is suspected. It is legally obtained either at the crime-scene itself, or by warrant.
Physical
It is known as physical evidence.
I think you mean a crime scene investigator.
Absolutely not. Not only could these bags be improperly cleaned and carry transmittable diseases, but they could potentially contaminate the physical evidence of a crime scene.
"Contaminate" is not an adjective that applies to verbally given testimony or written statements. It is applied to physical evidence of the type usually found at a crime scene or seized later in support of the investigation.
A crime scene investigator is responsible for collecting and analyzing physical evidence at a crime scene, while a detective is responsible for investigating crimes, gathering information, interviewing witnesses and suspects, and solving cases. Essentially, a crime scene investigator focuses on the physical evidence aspect, while a detective handles the overall investigation.
That person is called a forensic investigator or a crime scene investigator. They are responsible for collecting, analyzing, and preserving physical evidence from crime scenes in order to help solve crimes and provide evidence for legal proceedings.
crime scene sketch
there is lots of evidence at a crime scene, for instance fingerprints, hair,if it was a burglary what was actually took or what might be left behind, if it was a murder, the weapon or some blood
Scientific detectives
Physical evidence usually involves objects found at the scene of a crime. Physical evidence may consist of all sorts of prints such as fingerprints, footprints, handprints, DNA material, cut marks, tool marks, etc.Circumstantial evidence is indirect evidence which creates an inference from which a fact may be concluded. For example, circumstantial evidence of a murder is not based on first-hand eyewitness accounts, but may consist of threats that were made, fingerprints left at the crime scene, or the presence of the accused in the vicinity of the crime.