yes.
Not normally. The residue is unburned gunpowder, and different types of gunpowder can be used in different cartridges, and the same type of gunpowder can be used in more than one type of cartride.
no. if gunpowder residue is on your clothes than someone or you had to have fired or recently handeled the fired gun while in that clothing
They can test your skin and clothes for the presence of gunpowder residue.
When collecting gunpowder residue for analysis, yes, this is an accepted test.
Assuming you mean gunpowder residue on the skin, any thorough cleaning, such as scrubbing with soap and water, or alcohol cleaner, would do. But there will also be burnt gunpowder burnt into the skin, and these are much less likely to be easily removed. (Powder burns.)
A good crime lab might find residue of burned gunpowder on the person or his clothing.
In forensics, the dermal nitrate test detects the presence of unburned gunpowder and nitrate residue on the hands of a suspect.
In forensics, the dermal nitrate test detects the presence of unburned gunpowder and nitrate residue on the hands of a suspect.
No. Gunpowder (smokeless powder) has a different composition than dynamite. BOTH may contain some nitroglycerin, but there the formulas take different paths. However, there IS scientific testing for explosives residue as well as for gunshot residue. Since I work with explosives, this makes air travel and security screening an interesting event for me.
A ,38 Special CARTRIDGE will leave a fair bit of residue- due to the gap between the cylinder and barrel of a revolver (MOST .38 Specials are revolvers) The BULLET is the part of a cartridge that comes out of the barrel- they are solid metal, so do not create gunpowder residue.
Most of the residue will actually be on your wrist, but yes. After firing any handgun that discharges gunpowder, some of that powder will exit through the gun's chamber and get on your hand/s, wrist, and lower arm.