Instant Reference Sources, Inc.

We provide consulting services for federal and state governments and private companies. We have over 45 years of experience in environmental monitoring, expert knowledge systems, and training. We use this experience to help organizations and individuals to work more efficiently by implementing new technology and providing project-oriented knowledge.


We provide consulting services and training for intelligence agencies and private companies. In 2006 we completed an anti-terrorism expert knowledge system for the U. S. Environmental Protection Agency (EPA).

Expert Witness

Dr. Lawrence H. Keith, with his long and distinguished career and publications involving environmental sampling and analysis, provides expert witness testimony for cases involving complex analytical data. Please send an email to and request a CV summarizing expert witness experience.

Training and Workshops

We have provided training throughout the United States and also internationally (Australia, Asia, Canada, Europe, and South & Central America). From 2006 - 2012 Dr. Keith was a Co-director of the Environmental & Chemical Safety Educational Institute which helped environmental chemists in developing countries.

Can we help you? We welcome inquiries by phone (770-833-3115), or e-mail at












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