You can see an archived list of industrial security clearance decisions here [0] which is interesting, and occasionally entertaining, reading. "Drug involvement

You can see an archived list of industrial security clearance decisions here [0] which is interesting, and occasionally entertaining, reading. "Drug involvement security concerns" usually involve either actively using drugs or, worse, lying to cover up drug use, both of which are viewed as security concerns and grounds for rejection. [0] https://web.archive.org/web/20170218040331/http://www.dod.mil/dodgc/doha/industrial/2016.html https://web.archive.org/web/20170218040331/http://www.dod.mi...