[Closed] Dog attack/police response

The first part of my commute home on the bike takes me through a country park. I usually take the more direct route and stick to the forest roads rather than the Mtb trails and when I see a anyone else I always alert them to my presence by calling "hello" from some way off, slow down, and thank them if they have to gather a dog in. Anyway a few weeks ago I had just begun the journey had passed one chap as above then spotted a lady coming towards me with a Doberman/pointer looking dog, did my usual slow down said hello and as she made no attempt to control her dog I continued on, cue the dog turning round chasing after me and biting the back of my calf, tore my trousers and drew blood (I was surprised at how sharp it's teeth were)
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I jumped off the bike cursing and shouted with liberal use of expletives that her dog had bit me and ripped my trousers and I expected her to replace them, she replied that her dog had probably bit me as I had tried to kick it (I was trying to shake the beast off). I was so incensed I jumped on my bike and pedaled away went for 50m, I then put my brain in gear and turned round went back and told her that I was reporting the incident to the police and was taking a picture of her and the dog for reference, which I did. She asked me at this point to show her the wound which I did.
Later that evening I got the above pictures and the one of the lady and dog put on to the local towns Facebook page and within 15 mins. had her, name, address and place of work.
I used the police 101 number and reported what had happened, a few days later I was visited at home by a constable who took a statement and said he would pass on the information to the local bobbies, who would visit her and that I would be contacted by them as to progress/outcome.
Well almost three weeks have passed I've been back on to 101 and been promised the officer would call and update me and nothing, nada, zilch.
Am I being naive in expecting a speedy and positive (for me) result, is it likely anything has or will happen.