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Used to test for residue on the skin that can result from discharging a firearm, the suspect's skin is coated with warm paraffin, which is applied to the skin to open up its pores. This collects contaminants from the skin. If the suspect had fired a gun, one potential contaminant would be the nitrates from gun powder residue. Once the paraffin hardens and is removed, either diphenylamine or diphenylbenzidine is introduced to the paraffin cast, which will turn it blue in the presence of nitrates. Thus, the presence of blue dots on the paraffin casts is evidence that the suspect had fired a gun. Other sources of nitrates can produce a false positive result.
What else can I help you with?
Is it a violation that an accused undergo paraffin test without his lawyer?
No. A paraffin test gathers evidence, it is not interrogation.
Is it a violation that the accused undergone to a paraffin test without the presence if his lawyer?
No. A paraffin test collects physical evidence, it is not self-incriminatory.
How to do Paraffin test in line with police procedures?
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How should I seperate paraffin and water?
Separating paraffin (a type of wax) and water can be done through a process called "decantation" or "liquid-liquid separation" because paraffin and water do not mix
Is paraffin test result conclusive evidence?
When collecting gunpowder residue for analysis, yes, this is an accepted test.
What is gun powder nitrate examination or paraffin test?
The gunpowder nitrate examination, often referred to as the paraffin test, is a forensic method used to detect gunshot residue (GSR) on a person's hands or clothing. In this test, a paraffin wax material is applied to the skin, which captures any nitrates or other residues from gunpowder, indicating potential firearm discharge. While it was once a common practice, the paraffin test has largely been replaced by more advanced techniques, such as scanning electron microscopy (SEM), due to issues with reliability and specificity.
Describe about paraffin bath?
A paraffin bath is a warm oil-based wax that helps to relief pain from the feet, hands, sore joints and muscles. It is a treatment that can be done at home by using a small appliance and a special paraffin that is designed for this purpose.
Why paraffin is nonpolar?
Paraffin has covalent bonds.
How do you put PARAFFIN in a sentence?
I have made candles using paraffin wax. Paraffin oil is kerosene.
How is the Double Marker Test in Pregnancy done?
Double marker test is done by blood test.
What name is given to the process of 'breaking down the paraffin'?
The process of breaking down paraffin is called paraffin degradation. It involves breaking down the paraffin molecules into smaller components through chemical or biological means.
What fuel does paraffin lamp use?
The fuel used is paraffin
