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Chemical traces

LGC's scientists are interested not only in the presence of chemical particles, but also in their numbers, types and distribution. This information is critical to determining how, when and where an incident might have happened.  

We can call upon a vast armoury of analytical techniques and methodologies to determine the chemical composition of anything that might be required in a forensic context, such as:

  • Small particles and liquids or their residues, including:
  • Glass, paint, other building materials and plastics left behind from breaking and entry into buildings, vehicle accidents and criminal damage
  • Petrol and other accelerants used in arson attacks and their relationship to sites of burning at the scene, scorch marks on clothing or burns on those who might have been responsible
  • CS sprays and other noxious chemicals used in attacks on people
Textile fibres exchanged between people who have been in physical contact with one another. Our pioneering ‘fibre mapping’ technique allows us to plot on the victim’s body the precise distribution of textile fibres which could have come from a suspect’s clothing. We can then link this information to wound sites and other aspects of the case to provide a full picture of what is likely to have happened.  

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