A news item in Times of India today is about the innocence of a person suffering from sexsomnia. Experts told the court that the person will be telling the truth about his problem. The wife and ex-girl friend too supported the case with similar events in their life with him. Wikipedia has an article on the subject along with diagnosis methods. It is not clear why the person did not go for treatment when ladies in his life already encountered such behaviour and because of continued disorder, a girl has become victim. Letting of people with disorders can create law and order problem as people can misuse. Persons suffering from such disorders should be sent to hospitals for treatment and till it is cured, they should be under supervision.
Similarly, people suffering from sleep walk can create problems to the society by their actions, not known to them consciously. Whether such problems lead to split personalities and pose problem to others is not clear. Hypothetically, if we assume existence of such workers in the workplace, imagine what are the consequences and impact on coworkers and public outside factory premises.