Law enforcement technology : volume 47, number 1. 

 - Fort Atkinson, WI:  Endeavor Business Media,  January/February 2020. 
 - v;  28 cm. 
<br/><br/><label>ISSN: </label>0747-3680 
<br/><br/><label>Subjects--Index Terms: </label>Gun control. 
<br/><br/><label>Dewey Class. No.: </label>Sl L415jf 2020