Evidence and Possible Location To Find DNA On Evidence.

Introduction:

🔎Biological evidence is a type of Physical Evidence which contains DNA. Biological evidence are very useful to connect offender to a crime scene. Sometimes these evidence can be hard to find by naked eyes. DNA can be found on many things or objects.

Where to find Biological evidences on objects are given further::

  • Baseball / Cricket Bat

Location – Handle

Source of DNA
• Skin Cells
• Sweat
• Blood
• Tissue

  • Hat/Bandana

Location – Inside Surface

Source of DNA
• Skin Cells
• Sweat
• Saliva
• Hair
• Dandruff

  • Mask

Location – Inside Surface

Source of DNA
• Skin Cells
• Sweat
• Saliva
• Hair

  • Spectacles

Location
• Nose
• Ear piece
• Lens

Source of DNA
• Skin Cells
• Sweat

  • Facial Tissue/Cotton Swab

Location – Surface

Source of DNA
• Mucus
• Sweat
• Blood
• Semen
• Ear Wax

  • Dirty Clothes

Location – Surface

Source of DNA
• Saliva
• Sweat
• Blood
• Semen

  • Toothpick

Location – Surface

Source of DNA
• Saliva
• Blood

  • Cigarette (Used)

Location – Cigarette Butt (Filter Area)

Source of DNA
Saliva

  • Used Stamp/Envelope seal

Source of DNA
Saliva

Location – Moistened Area

  • Tape/Ligature

Location – Inside/Outside Surface

Source of DNA
• Skin Cells
• Sweat
• Saliva

  • Bottle/Can/Glass

Location
• Mouthpiece
• Outer Surface
• Rim

Source of DNA
• Skin Cells
• Sweat
• Saliva

  • Bed Sheets

Location – Surface

Source of DNA
• Sweat
• Saliva
• Hair
• Blood
• Semen

  • Used Condom

Location – Inside/Outside Surface

Source of DNA
• Semen
• Vaginal / Rectal cells

  • Fired Bullet

Location – Outside Surface

Source of DNA
• Blood
• Tissue

  • Bite Marks

Location – Surface Of Skin

Source of DNA
Saliva

  • Fingernails

Location – Scrapings

Source of DNA
• Skin Cells
• Sweat
• Blood
• Tissue

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