Expert Witness for Canine Aggression Litigation By: Robert Forto, PhD Attorneys may be uncertain about the benefits of retaining an expert in animal behavior in dog bites cases, or how such an expert can help. This is understandable: In Colorado, and in many other states, the law specifies strict liability for injuries caused by a dog bite. Thus, when only damages are contested, the animal behavior expert's role may be limited. However, if liability is contested, ...