My agency allows our officers to wear their soft body armor either in the issued internal or external carrier. We have been using external carriers for over 10 years. While we have seen several changes to the external carriers over the years the latest most practical external carrier we have received to date has generated some complaints from the field.
A drag handle is attached to the back of the new external carrier. While I'm certain most people can appreciate the intent or purpose of the drag handle, some of our officers are convinced it jeopardizes their safety. One argument being put forward is the drag handle presents an attacker with an advantage (anchor point for balance displacement or to further their attack in some way). The other argument being put forward is that the drag handle could get hung up on something causing the officer to be "stuck" where they are at and exposed to potential environmental hazards or threat from an attacker.
With these cons stated, one needs to consider that there are just as many pros that can be argued as well. The whole pro and con debate is really subjective at this point. While I would like to hear if other officers have experienced this debate within their own agency and how it was resolved, I would really appreciate the results of any studies that have measured the risks associated to drag handles attached to external carriers.