Ink analysis is performed to determine if two inks are similar or different, to determine the manufacturing source of an ink, and to date an ink.

What is ink analysis used for?

Ink analysis is an incredibly important analytical technique in forensic crime labs. Most commonly, it is used to determine if more than one ink was used on a document, which can help to detect fraud and forgery.

What are the different ways of ink analysis?

Typically, the nondestructive methods include: (1) a visual and microscopic examination of the writing to assess its color and the type of pen used; (2) infrared reflectance and luminescence examinations to determine whether the inks reflect or absorb infrared light and whether the inks luminesce; and (3) viewing the

How do you analyze a paint chip?

The paint chips obtained from vehicles involved in road accidents contain vital evidence for solving criminal cases. Paint traces can be transferred from a vehicles to other materials or surfaces like the clothes of the victim. These traces can be matched with the type of paint of the vehicle using IR analysis.

How do we use ink?

Ink is used for drawing or writing with a pen, brush, reed pen, or quill. Thicker inks, in paste form, are used extensively in letterpress and lithographic printing.

What is used for paint analysis?

Fourier Transform Infrared Spectrometry is used to determine the type of paint (chemicals, pigments, etc.) by analyzing the way in which its various components absorb infrared light. The FTIR technique is useful for analyzing the chemical composition of smaller particles as well as larger areas on the surface.

How do investigators analyze paint samples?

The analysis of paint evidence can be done using a variety of techniques including through the use of microscopic examination, investigators can get enhanced details, particularly through stereoscopic microscopes, as well as pyrolysis gas chromatography, in which heat and gas are applied to a paint sample, allowing for

What microscope is used to analyze paint?

A stereomicroscope with a magnification ability of 5 -100 power or a polarizing light microscope may be used for further evaluation of the physical characteristics of paint samples. 1. Determine the number of layers and sequence of layers in a paint sample.

What is the most common type of crime in which paint analysis is used?

One of the most common types of crime in which paint analysis is used ____11. The database that provides information about automobile paint ____12. The layer of automobile paint applied directly to the steel body for corrosion resistance ____13.