Jeffrey’s investigations have been featured in several books, including:
Convictions, by John Kroger
The Dark Art, by Edward Follis
The Last Cowboy, by Timothy Sellers
Seeds of Terror, by Gretchen Peters
Careers in Undercover Narcotics Investigations, by Linda Bickerstaff
U.S. Department of Justice Drug Enforcement Administration A Tradition of Excellence, 1973-2013, published by DEA.