Besides my "normal" job, I also have served as an adjunct professor in the recent past. It does not pay well, but I like teaching and it is fun to associate with people just entering the profession. That being said, I doubt that a EJD will enhance your chances of obtaining an adjunct teaching position, but if you have a law enforcement degree and considerable experience - that will likely be viewed more significantly than a degree which many in academic circles find questionable (the EJD). Just my experience, YMMV.