Disclaimer TL;DR:  The opinions and ideas expressed here are my own unless otherwise noted. Information on this site or in the blog section has been provided “AS IS” with no warranties, and usage by anyone confers absolutely no rights.

For information about the site privacy policy, please click here.

I make every effort to provide accurate information, honest analysis, and a balanced perspective. You will see lots of references and footnotes in my posts as and where they apply to the discussion.  Please use discretion, however, before taking any decisions based on the information from this site or blog.  While I try to cover topics in a reasonably thorough manner, I do not present a truly thorough exploration of some topics (and do not pretend to do so); particularly in terms of subtleties or nuances in interpretation or meaning.  Forensic science is a complex area that is changing all the time, and forensic document examination may be one of the most complex domains within it.

Be aware that I will not compensate you in any way whatsoever if you (or anyone else) suffer any loss, inconvenience, or damage because of, or while, making use of the information provided.  If you want my professional opinion about anything, including the topics on this site, please contact me to discuss the matter further or retain the services of another qualified examiner.

Unless indicated in the text, the information provided on this site DOES NOT reflect the official thoughts, position, policies, standards, methods, intentions, plans, strategies or beliefs of my employer (the Canada Border Services Agency), the Government of Canada, the Canadian Society of Forensic Science, or any other agency, body or organization.

Although I have been a guest with the QD sub-committee within OSAC and involved in various other NIST activities, the views expressed here (to the extent that any have been expressed) are mine alone. They are not those of any organization, group, entity or agency. They are not necessarily shared by anyone within (or outside) of NIST, OSAC, any specific SAC, any OSAC Task Group, any OSAC Resource Committee, the Government of Canada, the Canada Border Services Agency, etc., etc.

Edits and Changes

My thoughts and opinions do change over time. I consider that a necessary consequence of having an open mind and a willingness to improve and expand one’s knowledge of the world.  Thus, individual posts in the blog represent a quasi-permanent snapshot in time. They are a manifestation of my thoughts and opinions at the time of posting. As a result any thoughts and opinions expressed in “out-of-date” posts may not the same, nor even remotely similar, to what I believe today.  I reserve the right to update old or out-dated posts as I see fit and may do so without explicitly announcing, stating, indicating or marking corrections made in this manner (as a rule, though, I will mention the edit in the post).

Ultimately, I reserve the right to edit, restrict or delete any information, post, or comment without providing an explanation or reason.

Legal Advice — Not from me

I am not a lawyer and I do not provide legal advice of any kind whatsoever. If you need legal advice, please contact the lawyer of your choice but, whatever else you may do, please do not act upon any of my comments or take them to be legal advice. They are not!


Comments relating to my blog posts or other information on the site are welcome and I encourage discussion, argument, and debate. Feel free to challenge me, disagree with me, or tell me I’m completely nuts. Each page has a comments section for that purpose (or you can send me a message via the Contact Page).  However, please keep things civil and respectful. Also, if there is a question you have and you think I might be able to answer, please contact me directly.  I will be happy to help if I can.


Finally, if you wish to quote information from the site please provide a link-back and/or properly reference the website.  An acceptable format for citation would be something like:

Ostrum,  R. Brent.  “[Specific page title].”  Available online at http://www.rbostrum.ca/wp/[insert relevant page reference] (Accessed on:  [date downloaded] ).

Thanks very much.

Brent Ostrum.