The concise answer to this question is yes. Many vets and trainers recommend these devices for cases where the dog’s aggression levels are too high. It is also advised that the owner or the person training the pet does not wait for a particular moment where the dog becomes overly aggressive.
Whatever you do, don’t use the collar as a means of getting revenge for something that your dog has bothered you with. There shouldn’t be any correlation made between the behavior and the shocks. Otherwise, the dog might become even more aggressive in an attempt to protect him or herself. The collar has the purpose of teaching obedience, and all of that can help with minimizing aggression.