About the Authors

Charles E. Loeffler


Affiliation Department of Criminology, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Competing Interests

The author has read the journal's policy and the author of this manuscript has the following competing interest: CEL has filed a patent application (U.S. Provisional Patent Application No.: 62/001,981) for a “Wearable System For Accelerometer-Based Detection And Classification Of Firearm Use.” This interest does not alter the author's adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: CEL. Performed the experiments: CEL. Analyzed the data: CEL. Contributed reagents/materials/analysis tools: CEL. Contributed to the writing of the manuscript: CEL.