If you do not catch the dog in the act, there is really nothing you can do. (chai-online.org)
If, and only if, you actually catch your dog chewing on something he shouldn't, interrupt the behavior with a loud noise and offer him an acceptable chew toy instead. (ddfl.org)
The very well - known breed used as catch dogs are pit bulls because of its large and powerful build. (breedingbusiness.com)