4th Edition is now shipping

Get your copy of Investigating Impaired Drivers 4th edition.   The new impaired driving laws are analyzed and presented in a well organized easy to understand manner.  This book is an essential resource for anyone involved in investigating or prosecuting impaired driving.  You can order your copy by using the "Add to Cart" button on the on this website or by contacting us by email at MapleBookPublications@gmail.com.