Crimes happen almost every day, and usually they occur with the suspect making use of a particular weapon, be it a simple pen that can be used for stabbing or a rope which may have been utilized for strangling. One of the most common weapons being used are the firearms.
All about Handguns
If you speak of firearms, you will also think of handguns, which is actually associated with majority of shooting incidents, especially in America. That’s why the country developed a system in which certain marks found in ammunition can only be attributed to a specific firearm. This permits for easier identification of firearms, where, in science, it is called as ballistics.
The process of ballistics examination requires a firearms specialist to compare fired bullets as well as cases of cartridges side by side to determine where these components came from one firearm. In order to carry out this procedure much easier, they utilize a particular type of microscope which is called as ballistics comparison microscope. This allows them to compare two different bullets, one from the crime scene and the other a bullet only associated with the gun used for shooting, simultaneously.
A Detailed Perspective in Gun and Firearms Microscopy
A barrel of a gun can develop grooves, which cause the rotation of the bullet as it travels. Land impressions, on the other hand, will be attached to the bullet’s surface. These two kinds of imperfections can be transferred incidentally tot eh surface of the bullets. These imperfections, however, are generated randomly due to constant gun use or during the manufacturing process. They, then, become unique to every gun barrel or a signature that can only be attributed to that barrel. It is this signature that can help firearms specialist in identifying or confirming the source of the bullet. The role of the comparison microscope is to assess the microscopic impressions present in the bullet’s surface, whether they match or not.
Comparison Microscopy
The comparison microscope is the primary tool used in trace evidence comparisons in forensic science laboratories. One of the primary tools in comparing trace evidence is the comparison microscope. It can also be used to analyze documents as well as identifying whether a specific bullet came from only one source. Check out http://www.comparison-microscope.com for more comparison microscopy information.
The instrument consists of two microscopes which can be viewed simultaneously on a split screen. A comparison microscope is composed of a pair of microscopes, which permits you to simultaneously view a sample on the split screen. You can then compare the trace evidence set at similar variables, such as the condition of the light source or the illumination and the magnification level. You can also position the images so they may appear like one overlaps the other.
A more advanced kind of comparison microscope is the digital comparison microscope. Besides allowing you to view different objects all together, you can also attach a digital or video camera. In turn, you can connect these peripheral devices to a computer. This will allow you to not only capture a high-quality image of the trace evidence but you can also save the images as a file which you can send or study later. The video camera, on the other hand, is very useful when you are in the process of giving lectures about ballistics and gun and firearms microscopy. You can connect the digital comparison microscope into the large screen so you can allow more people to view and understand the entire process.
Basics of Bullets
For firearms expert, it is very important that he is able to identify the caliber of the gun used as well as the manufacturer from where the gun came from.
There are many ways on how you can determine who actually created the bullet. The problem lies, however, if you cannot pinpoint a particular firearm even if you have undergone all standard techniques needed for firearm identification. This may happen if there are numerous shooters in a particular crime scene, and they are all using the same brand and make of caliber pistols. Thus, all the fired bullets, which can be collected at the crime scene, will possess exactly the same characteristics and diameter.
To solve this, you may have to get the ammunition brand that was used by every shooter. You only have to hope that each one didn’t use similar brand. You can then match the ammunition brands to those being used at the crime scene.
Guns and firearms microscopy does involve complicated process, but a comparison microscope somehow makes everything a little bit simple. If you want to know of how the techniques as well as the comparison microscope can help firearms experts, visit digitalbinocularmicroscopes.com.
