As a full time police officer, I have been involved in a few shootings. Take it from me... gross motor skills are what you will be dealing with. Think about this question for a moment... you have just had to use your weapon in a lethal force encounter. Your heart is racing, your adrenaline is sky high, you can't remember the number of shots fired, let alone can you remember "did I fire 4 or 5 shots"? Trying to process the fine motor skills of accessing a phone, finding an app, accessing the app, and following the instructions, are going to be lost... this is why 911 was created. To simplify the overall process of calling for help. Just my opinion... but in the off-duty shooting I had this past November with an active shooter... it was all I could do to access my phone and dial 911. I kept looking for my police radio... then grabbed my pager thinking it was the phone... all in a span of less than a minute. Then I called 911.... believe me folks. Stuff happens. I train every day for the "what if?"... how often does your average LTC person train for a "what if" scenario??