Blue Light Publishing

year of pub­li­ca­ti­onISBNauthor(s)title
2006978-0-9554708-0-6Adrian Williams · Greg H. Williams · Richard W. LewisPolice Pass National Investigators Examination Revision Crammer Textbook
2007978-0-9554708-3-7Adrian Williams · Greg Williams · Richard LewisNational Investigators Examination (NIE) Revision Crammer Textbook 2008
2009978-0-9554708-5-1Adrian Williams · Greg WilliamsOSPRE Part 1 Sergeant and Inspector Revision Crammer Textbook