Sample Gallery: Public Security Digital Microscope Applications - Ballistic, Forensic and Trace Tracking Surveys

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Sample Gallery: Public Security Digital Microscope Applications - Ballistic, Forensic and Trace Tracking Surveys

Claudia Müller ¹ Michael Doppler, MSc ¹

¹ Leica Microsystem

March 21, 2016

The main task of global forensic experts is to assist in the implementation of the law. They use investigation and evidence to help determine whether the suspect is guilty. In the survey, depending on the type of evidence, they used a series of macroscopic and microscopic microscopes. Digital microscopes play a large role in forensic science, and digital microscopes can be used to detect physical evidence extracted from firearms and knives, forensics, forensic or statutory drugs, hair, fibers, and glass and paint.

From the sample gallery below, you'll find sample images of ballistic, forensic, and trace tracing surveys.

There is a challenge in ballistic investigations , that is, bullets and shells are very similar, they are made of metal, and these items are reflected under the microscope. In order to view the tiniest details of the evidence and traces, the above-mentioned reflective conditions must be completely avoided or minimized. One of the methods to achieve the above object is to tilt the microscope.

A common approach to forensic and handwriting surveys is to make an overview at a low scale, then zoom in on the suspicious areas of the document and explore the details. The above work may require frequent switching of magnification and objective lens.

Trace evidence experts will investigate a large amount of material extracted from hair, fiber, glass, metal, paper, paint, and biological samples. Due to the nature of these materials, different lighting types and low to high magnifications are required. In addition, creating mosaics and 3D images is also very important for getting full-frame images.

The images below were taken with the Leica DVM6.

Detailed view of the explosive product.

Explosion product detail (aluminum particles)

Detailed view of the explosive product (aluminum particles).

Multi-focus hair detailing.

Multi-focus hair detailing.

With root hair.

Fiber bundles.

Multi-focus cutting fiber detail.

Multi-focus textiles.

Three-dimensional model of textiles.

Multi-focus blue metallic paint.

Three-dimensional model of blue metallic paint.

Multi-focus blue metallic paint layer.

3D model of blue metallic paint layer.

3D model of blue metallic paint layer.

3d model of red metallic paint.

3d model of red metallic paint.

Handwritten handwriting details under the seal.

A detailed drawing of the handwriting on the seal.

A detailed view of the scratch of the bullet from the barrel.

A detailed view of the bullet scratches from the barrel.

Two-dimensional multifocal image of the warhead.

Three-dimensional multifocal image of the warhead.

A two-dimensional multifocal image of the nickel-plated cartridge reveals the tip of the pin on the primer.

A three-dimensional multifocal image of the nickel-plated cartridge reveals the tip of the pin on the primer.

The two-dimensional multifocal image of the brass cartridge shows the trace of the needle on the primer.

The three-dimensional multifocal image of the brass cartridge shows the trace of the needle on the primer.

Face value 50 South African Rand banknotes, zoom in to see more details (right).

Dollar bills, zoom in to see more details (right).

Swiss ID card hologram (tilt 23°)

Swiss ID card hologram (tilt 15°)

Swiss ID card hologram (tilt 9°)

Swiss ID card hologram (tilt 0°)

Swiss ID card hologram (tilt – 6°)

Swiss ID card hologram (tilt – 15°)

Swiss ID card hologram (tilt – 22°)

Swiss ID card hologram (tilt – 27°)

8D NLS

What is Vector 8D NLS?
The purpose of this training program is not a detailed physical justification of the principles of the «8D-LRIS» device, since different devices are designed differently. Currently, there are several manufacturers of this equipment, [spinoffs" from the original research group. In particular, in the original version of Russian, the headphones were used as magneto-inductors with an oscillation frequency, which is close to the thetarhythm of the brain, while in later versions of the device - as a conductor of electromagnetic waves that are close to the alpha rhythm of the brain. A good effect is obtained from the use of electromagnetic waves as a trigger mechanism for the study of a healthy body.Also, in many other versions of the device, laser emitters are used to affect the brain of the patient.Using the laser leads to an increase of the resonant response. However, there is a risk of adverse effects of such exposure, so the laser
emitter is not used in all models of «8D-LRIS» equipment.