By @forensicfield

Introduction (Matrix or Matrices)

ūüďĆMatrix or matrices is the material in animal or plant cells, in which more specialized structures are embedded, and a specific part of the mitochondrion.

ūüďĆAny material substance in the universe wherein the active constituent may be dispersed, accumulated, left, absorbed or chemically bound.

ūüďĆThe internal structure of connective tissues is an extracellular matrix.

ūüĎČ Why are matrices use?

ūüĎČ Matrices use for the individual identification of the criminal or victim.

Matrices are classified in Three types:

  • Biological
  • Non- Biological Matrices
  • Viscera


  • Stomach Contents
  • Gastric Lavage
  • Intestinal Contents
  • Stool
  • Viscera
  • Brain Matter
  • Faecal Matter
  • Vomit
  • Urine
  • Saliva
  • Bone
  • Hair
  • Blood
  • Skin
  • Nails

Non- Biological Matrices

  • Water
  • Vegetables
  • Tea
  • Milk and milk products
  • Coffee
  • Food and Food products
  • Wines
  • Fruits
  • Drinks
  • Cereals¬†
  • Pulses
  • Cooked materials
  • Remnants or traces of poison in small container, etc.


Internal Organs, such as:

  • Liver
  • Kidney
  • Stomach
  • Uterus
  • Heart
  • Lungs
  • Intestine
  • Gall bladder
  • Brain, etc.

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