Robert J. Muehlberger was the 25th President of the American Society of Questioned Document Examiners.​

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After serving as a Captain in the Military Police Corps in Vietnam, Mr. Muehlberger returned to the United States and trained as a forensic document examiner with the United States Postal Inspection Service. 

He later became the Laboratory Director of the Postal Inspection Service Laboratory in Memphis, Tennessee. 

In 2008, he retired from the position of Laboratory Director for the Postal Inspection Service Laboratory in Dulles, VA.

Mr. Muehlberger served as treasurer and vice president of the Society prior to his election as president. 

In 2000, he received the Ordway Hilton Award (Questioned Documents Section Award) from the AAFS. 

He is a Fellow of the American Academy of Forensic Sciences (AAFS) and has also served as the Chairman of the Questioned Documents Section of that organization.  

Mr. Muehlberger is a Diplomate of the American Board of Forensic Document Examiners. 

He is the author of a number of published articles and professional papers, such as "Identifying Simulations: Practical Considerations," published in the Journal of Forensic Sciences.

Robert J. Muehlberger became a Life Member of the ASQDE in 2012.