01 June 2016 © Crown copyright 2014...
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© Crown copyright 2014 Dstl
01 June 2016
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Analysis and Attribution to meet the
needs of the 21st Century
Dr Cerys Rees
Fellow – CB Analysis & Attribution
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Analysis needs in the 20th Century
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Analysis in the 20th Century
• Supporting destruction
activities
• High concentrations in
samples
• Scheduled chemicals
only
• OPCW reporting rules
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The Challenges of the 21st Century
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Analysis & Attribution at Dstl
• Combined CB facility
• Reception Lab not used
for research
• Chain of custody on all
samples
• To provide senior level
decision makers with
evidence
• To support CT
investigations
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Chemical Biological Analysis & Attribution Capability (CBAAC)
End to End Process
Sampling & Collection
TransportTransfer to Reception Laboratory
Initial
Screening (if required)
High Confidence
Analysis
Attribution (if required)
Report
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Chain of Custody
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Reception & Screening
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High Confidence Analysis
• OPCW designated lab
• ISO17025 flexible scope
of accreditation
• Research to develop
new methods
• Analysis of all
components in sample
to facilitate attribution
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Biomedical Samples
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Current Challenges
• Biomarkers difficult to
identify
• Natural level in humans
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Imperial War Museum
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Environmental Samples
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• ISO 17025 methods
• Full scan analysis
• OPCW criteria for identification met in all cases
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Synthesis Routes and Starting
Materials
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Novel Approaches
• Crimelites® to identify
contaminated areas
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• Analysis of plants to
identify metabolised CW
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Current Challenges
• Chlorine dissipates very
quickly
• Chlorine in
environmental samples
• Background samples for
comparison are
essential
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Old Weapons or Newly Made
• Modern analytical
techniques could
identify age of material
• Databases for
comparison essential
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Future application of analysis
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Attribution
Traditional Forensics
Explosives analysis
DNA analysis
Agent analysis
Contextual information
Weapons analysis
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