How do police officers use science in daily life?

Answer 1

Chromatography is the most used separation-technique in forensic-chemistry and forensic-toxicology. HPLC and thin-layer-chromatography are often used to analyse samples of blood and urine to search for drugs and toxines as well as to search for toxines in case of a murder or an unexplained death. To identify and quantify a unkown toxine chromatography is mostly combined with mass-spectrometry. But in case of searching for heavy-metals methods of atomic-absorption-spectrometry are more often used instead of chromtography.Gas-chromatography in connection with FID and headspace-analysis is a common technique to quantify the amount of alcohol in a blood-sample.

At least the technique to analyse DNA-samples called "Gel-Elektrophoresis" is also a chromatography-technique.

To analyse paints of faked paintings or documents or car paints in case of an accident or crimes, the IR-spectrometry is the more common technique, it would also be possible to analyse these samples by thin-layer-chromatography or other chromatography-techniques, but IR-spectrometry is more reliable.

Answer 2

Chemistry is a valuable tool in forensic science that helps uncover information from physical evidence. In criminal cases, chemists analyze substances such as blood, DNA and gunpowder residue to determine when and by whom the crime was committed.

Answer 3

police officers use DNA in there work for a reason.

well do you know?

well the reason is because the finger prints, fluids, and foot print (ect.), are evidence that some thing happened at the crime scene.

and while they gather info, they send the evidence to a crime lab to be tested. after that they try to think of some suspects that could be there. then if that evidence shows you where there you will prob be one of the main prime suspects.

Answer 4

It can be used in so many different ways, for example say that there has been a murder and a forensics officer finds a blood sample at the crime scene that does not match the victim's DNA. Now let's assume you have 3 suspects. You could take a blood sample from each suspect and see if it matches the one found at the crime scene. It is, however more common to use DNA tests nowadays, but those take a lot longer.

Hope this helped :)

Answer 5

chemistry is used in the involvement of forensic science in many different ways. they test DNA, as in hair, saliva, and fingerprints

Answer 6

Radar is a good example of an application of science to police work. Breath alcohol analysis (the "breathalyzer") is another example.

Answer 7

it is used in sucide case to find which drug taken.

Answer 8

they use cameras to spot who are speed driving

Answer 9

Examples: detection of drugs, explosives, poisons, radioactive materials etc.