Matrices & Classification of matrices

By @forensicfield

Introduction (Matrix or Matrices)

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

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

📌The internal structure of connective tissues is an extracellular matrix.

👉 Why are matrices use?

👉 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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