sally-synopsis
Wastewater analysis for trace peroxide explosives: exploiting evidence as intelligence.
Aims of project: There is significant potential for measuring
trace levels of explosives in the wastewater system, to identify areas where IEDs are being manufactured. In this way we can offer a viable form of forensic
intelligence to inform on-going criminal and counter terrorism investigations.
Collection, extraction and quantification: This project aims to
develop robust collection, extraction and quantification methodologies for the
detection of trace peroxide explosives in wastewater at different locations
along the sewerage network, from homes to the wastewater treatment plant and
back into the river.
Forensic significance: Since the precursor chemicals used to manufacture
'home-made bombs' are commonly available, there is more forensic significance
to the detection of the final explosives themselves. Different approaches to
collecting wastewater samples from wastewater pumping stations and manholes as
well as collecting influent and effluent from wastewater treatment plants will
be explored, including the development of an explosives specific device for use
in situ.
Visual assessment and interpretation: Data collected regarding detection levels of explosives throughout the
wastewater system can be used to create a hot-spot map using ArcGIS software.
The visual assessment and interpretation of such an intelligence tool is to be
analysed so that any misinterpretation issues are identified. This holistic
approach can contribute towards prevention and disruption measures by directing
surveillance resources to target areas of particular interest.
Crime prevention: Whilst in forensic science, there is a general focus on the detection of a crime after the event, identifying the 'who', 'when', 'where' and 'how', this research highlights the potential for forensic evidence from environmental, and in particular, wastewater surveillance to also have a part to play in the prevention of crimes.
Contact us
UCL Centre for the Forensic Sciences 35 Tavistock Square, London WC1H 9EZ
+44 (0)20 3108 3062, email us at cfs@ucl.ac.uk or find us on Twitter
