When collecting gunpowder residue for analysis, yes, this is an accepted test.
No
No. A paraffin test gathers evidence, it is not interrogation.
No. A paraffin test collects physical evidence, it is not self-incriminatory.
The test of ethyl and methyl alcohol may provide some evidence, but it is not necessarily conclusive. Further analysis and testing could be needed to confirm the presence and differentiate between the two types of alcohol definitively.
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.
no
noty sure answer it your self
There is no conclusive evidence about this, but I will be doing a test in science class and will post the answers. Kid before me that said,"It must because it is already bubbly" you are a retard!
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two
the test is in conclusive. may be you did it worng or it is expired?
True
Paper is not soluble in vinegar.A simple test is conclusive for you.