after a bite incident here, there is an investigation by animal control and possibly charges, fines, and the owner is subject to keeping the dog muzzled and leashed at all times outside the house ... unfortunately the dog is sometimes euthanized especially if it's a repeat incident
looks like this guy has been fined but were there any orders after the prior incidents? like was he supposed to have control of them at all times? (which can't happen if they're in a backyard unleashed because they can always jump the fence, dig under the fence, take advantage of a gate being left open or swinging open in the wind)
if so, despite his apology, he should be charged and sued - and never have custody of dogs again, cause he clearly doesn't know how to train them properly