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Centre for Australian Forensic Soil Science (CAFSS)

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Education - Soil science solving crimes

Media release

The growing focus on security related issues and counter terrorism is one of the most significant challenges facing soil forensics in the future. "There is a paradigm shift from not only providing soil forensic information for 'evidence' but also for 'intelligence'" says CSIRO Land and Water's Dr Rob Fitzpatrick a soil forensics expert and Director of the Centre for Australian Forensic Soil Science (CAFSS). Dr Fitzpatrick was speaking at the International Workshop on Criminal and Environmental Soil Forensics in Perth recently.

In his address, Dr Fitzpatrick also emphasised the need to close the gap between 'forensic geology' and '‘forensic soil science'. "Although in principle geology and soil science are closely related, there are significant gaps in the basic knowledge and lack of communication between these two disciplines. In particular, the limited amount of shared language and the lack of standard procedures and terms for describing and sampling soils."

Dr Fitzpatrick outlined key areas for the future of soil forensics:

  • Continuing 'high end case investigations' that require soil as evidence in criminal and environmental forensics
  • Publishing results where soil properties have been used successfully to both discriminate between and match soils for critical evidence, for example:
    (i) solving a double murder case
    (ii) identifying the locality of stolen ferns from a conservation park
    (iii) sexual assault and kidnapping cases
    (iv) identifying where an industrial dust on parked vehicles came from
    (v) identifying the origin of stolen dinosaur eggs.
  • Development of new and improved sampling and description methods
  • Refining current methodologies and techniques for reliable identification
  • Development of isotope and DNA profiling/fingerprinting techniques, which are scientifically and legally robust
  • A focus on education and training.

The aim of the workshop was to provide a review of established techniques of soil characterisation and comparison. It also provided the opportunity to promote in-depth discussion and cross-fertilisation of new ideas in leading-edge areas of research at the emerging interface between soil science and forensic science.

The workshop was attended by local and international experts in the technologies and approaches for characterising soils in the field and in the lab.

Guests from the United States, Scotland, England, New Zealand, Canada, China and across Australia presented a variety of engaging overviews and case studies related to areas such as soil profiling, molecular diagnostics, environmental chemistry, grave excavation and taphonomy (the study of the fate of remains of organisms after they die).

The workshop followed the 18th International Symposium on the Forensic Sciences.

The final program and book of abstracts can be found on the workshop website.

Photo of the spade used to solve a crimePhoto: The shovel is the focus of a DRAFT interactive exhibit developed by Dr Rob Fitzpatrick for the Smithsonian Museum of Natural History in Washington DC and ISRIC – World Soil Information (Netherlands). The exhibit displays how soil properties were used on the shovel to both discriminate between and match soils at the crime scene for critical evidence in solving a double murder case.
The Museum has commissioned Dr Fitzpatrick to develop and supply a number of interactive exhibits in which visitors can interpret forensic soil evidence to solve a crime.