A fingerprint is an impression left by the friction ridges of a human finger. The recovery of partial fingerprints from a crime scene is an important method of forensic science. Find detailed explanation for fingerprints here.

Heavy metal poisoning is caused by the accumulation of certain metals in the body due to exposure in food or water, industrial chemicals etc. Certain most common metallic poisons like arsenic, mercury, lead, thallium, coppper etc have been discussed here in detail.

The science of projectiles and firearms is defined as 'ballistics' and it can be divided into three distinct categories: internal, external and terminal. Find detailed explanation here.

Forensic toxicology is the use of toxicology and disciplines such as analytical chemistry, pharmacology and clinical chemistry to aid medical or legal investigation of death, poisoning, and drug use. Certain important topics have been discussed here

Excessive use of psychoactive drugs, such as alcohol, pain medications or illegal drugs is known as substance abuse. It can lead to physical, social or emotional harm. Certain drugs that are commonly abused in different parts of the world are discussed here.

Alcohol poisoning occurs when someone consumes a toxic level of alcohol, usually in a short time. The poisoning can be acute or chronic. Different kind of alcohol like ethanol, methanol, isopropyl alcohol etc. can lead to alcohol poisoning. They have been discussed in detail here.

Pesticides are chemicals that may be used to kill fungus, bacteria, insects, plant diseases, snails, slugs, or weeds among others. Insecticides are a type of pesticide that is used to specifically target and kill insects. These substances are also used sometimes for homicidal purposes.

Fibers are considered a form of trace evidence that can be transferred from the clothing of a suspect to the clothing of a victim during the commission of a crime. Fibers can also transfer from a fabric source such as a carpet, bed, or furniture at a crime scene.

There are some plants like Ricinus communis, Calotropis procera, Strychnos nux –vomica,Abrus precatorius, Capscicum annum, Datura etc are very toxic plants and used for homicidal and suicidal purposes.

A forensic glass analysis is typically a comparison of two or more glass fragments in an attempt to determine if they originated from different sources. Detailed explanation about different types of glasses and methods for examination have been discussed here.

Hair samples are one of the most important resources in the forensic analysis of crime scenes, often providing valuable information that can help to lead to the identification of a suspect or victim.

The development of instrumentation has led to increase in more sophisticated and non-destructive method of analysis. Non- destructive techniques plays the most valuable role in forensic science as they can be conducted on very small samples and does not even require extensive sample preparation before the measurement.