I work in this field.
I am so sorry to hear of your loss as regards your dog. What an awful way to lose a much loved family pet and Im sorry a youngster was injured.
The dangerous dogs act is flawed.
However just to quell everyones anger it does appear the that Police HAVE taken action,the owner has been charged.
The dog can be seized if it is suspected of being a pit bull and assessed by experts. Different forces have different policies on whether they the dog is left with the owner or taken into kennels - mainly down to cost.
I hope the court makes the appropriate orders at trial.