About Brent Ostrum



BA (Hons) Psychology, Highest Honours (Carleton U, Ottawa, ON)

Certificate of Advanced Studies in ‘Statistics and the Evaluation of Forensic Evidence’ (University of Lausanne, Switzerland)


35 years with various Federal laboratories in Canada. Original training with Royal Canadian Mounted Police Forensic Laboratory Regina.


  • CSFS Document Section
  • International Graphonomics Society (IGS)
  • International Society for Optical Engineering (SPIE)
  • Society for Imaging Science and Technology (IS&T)
  • NIST, Expert Working Group on Human Factors in Handwriting Examination
  • NIST, OSAC, QD sub-committee


  • The Logical Approach to Evidence Evaluation, Chapter 3 in Forensic Document Examination in the 21st Century. Edited by Miriam Angel and Jan Seaman Kelly. CRC Press, 2020. ISBN: 9781003112228.
  • Forensic Handwriting Examination and Human Factors: Improving the Practice Through a Systems Approach. Expert Working Group for Human Factors in Handwriting Examination.  Various co-authors. U.S. Department of Commerce, National Institute of Standards and Technology. NISTIR 8282. Published February 18, 2020. DOI: 10.6028/NIST.IR.8282
  • Sequence determination between blue ballpoint pens and toner using MikrosilTM casting of the intersection, CSFS Journal, Vol. 52, Issue 4, Nov 2019. Co-authors Julie Binette & Andrew Barton.
  • CSFS Document Section Position on the Logical Approach to Evidence Evaluation and Corresponding Wording of Conclusions, CSFS Journal, Vol. 52, Issue 3, July 2019. English (pp. 129-138) and French (pp. 139-149) versions.
  • Proposal for a FHE process map (Based on the Logical Approach and Propositionally-driven), presented at ASQDE, 2019, Cary, NC.
  • Guest speaker: “Canadian Practitioner perspective on Evaluative reporting: Implementation and Practise” presented at the Evaluative Reporting Symposium. Centre of Forensic Sciences, Toronto, ON, June 18-19, 2019.
  • Conclusions, reporting and testimony, Co-author Chapter 11 in Forensic Examination of Signatures, 1st Ed. by Linton Mohammed. Elsevier Academic Press, 2019. ISBN: 9780128130292.
  • Morrison, GS, Kaye, DH, Balding, DJ, Taylor, D, Dawid, P, Aitken , CGG, Gittelson, S, Zadora, G, Robertson, B, Willis, S, Pope, S, Neil, M, Martire, KA, Hepler, A, Gill, RD, Jamieson, A, de Zoete, J, Ostrum, RB, Caliebe, A (2017) A comment on the PCAST report: Skip the “match”/”non-match” stage. For Sci Intl.
  • Panel discussion: “The logical approach to evidence evaluation and reporting” for the 2016 ASQDE meeting, Pensacola Beach, FL, USA
  • A Review of Recent Forensic Document Examiners Training in North America Relating to the Logical Approach to Evidence Evaluation presented at the 2014 International Conference on Forensic Inference and Statistics meeting, Leiden, Netherlands
  • Panel discussion: “Conclusions… Signature and Handwriting Conclusion Terminology and Scales” for the 2014 ASQDE/ASFDE conference, Hawaii, USA
  • Error, Confidence and (Un)certainty – Deconstructing Authorship Opinions Using a Forced-Call Testing Protocol presented at 2013 Measurement Science and Standards in Forensic Handwriting Analysis Conference, NIST-OLES, Gaithersburg, MD, USA
  • A Canadian perspective on forensic science versus pseudoscience, POMA 19, 060002 (2013).
  • Proficiency Testing Program in the CBSA Forensic Document Section, presented at ENFHEX 2011, Delft, NL.
  • Online Proficiency Testing for Signature Comparison by Forensic Document Examiners and Non-Examiners, JASQDE, Vol. 14, No. 1, June 2011. Co-authors Lindsay Holmes and Andrew Barton.
  • Sequence determination between blue ballpoint pens and toner using Mikrosil casting of the intersection, presented at ASQDE 2010, Victoria, BC. Co-authors Julie Binette (presenter) and Andrew Barton.
  • Using Photomerge™ for Demonstrative Evidence, JASQDE, Vol. 13, No. 1, June 2010. Co-author Linton Mohammed.
  • Application of digital signal processing for the numerical characterization and automated recognition of ink toners subjected to Py-GC/MS analysis: a feasibility study, presented at EDEWG 2010, Dubrovnik, Croatia. Co-authors Luc Brazeau (presenter) and Matthew Graydon.
  • Commentary on: “Sequential unmasking: a means of minimizing observer effects in forensic DNA interpretation”. J Forensic Sci. 2009;54(6):1498-1499
  • “Another Look at Handwriting Movement”, JASQDE, Vol. 9, No. 2, Dec (2006)
  • “Application of Hyperspectral Imaging to Forensic Document Examination Problems” JASQDE, Vol. 9, No. 2, Dec (2006)