About the Author

J.D. Callahan

Meet Julie

Julie D. Callahan is a retired police officer, detective, and district attorney investigator.  She spent nearly 30 years working various assignments at the San Jose Police Department.  Sexual assault investigations, child exploitation detail, sex offender registration detail, and special investigations working out of the Office of the Chief of Police, where she worked organized crime, public corruption, and international human sex trafficking cases.  Earlier in her career she worked street gangs, narcotics, and had long-term undercover cases with the FBI and U.S. Customs.  She also worked on property crimes, crisis intervention, and crime scene investigation assignments.  Between detective assignments, Julie returned to a patrol assignment.  She was extensively decorated for her investigative case work and critical incidents in the field.

Upon leaving SJPD she continued working as a D.A. Investigator with the Monterey County District Attorney’s Office.  She worked for a few years as a Consumer Protection and Environmental Crimes investigator but spent the majority of her time working on homicide cases at the two state prisons in Monterey County.  She rounded out that experience investigating officer-involved shootings, in custody deaths, and as a crime scene investigator, and as a homicide investigator for smaller agencies with few, overworked, or no investigative staff or resources.

Julie is married.  She and her husband live in the high desert of Northern Nevada on a small ranch.  They spend their time in various leisure pursuits which include education, photography, writing, and they also put in an exorbitant amount of time on the road.  She and her husband maintain a strong connection to their law enforcement (Julie) and Marine Corps. (name whithheld) roots and careers.

Ready for the first case?

Explore J.D. Callahan’s books and start with Reluctant Witness, Book 1 in the Sonja Soto Murder Mysteries.