David Ashbaugh also wrote .
David Ashbaugh also published a fundamental and essential reference book for the entire forensic identification community : Quantitative - Qualitative Friction Ridge Analysis : An Introduction to Basic and Advanced Ridgeology .
David Ashbaugh also wrote and published a fundamental and essential reference book for the entire forensic identification community : Quantitative - Qualitative Friction Ridge Analysis : An Introduction to Basic and Advanced Ridgeology .