_Morbid Phenomena._ When examining a criminal or even a suspected person, who is nearly always more or less abnormal, it is advisable to investigate the more common morbid phenomena he may be subject to, on which he is not likely to give information spontaneously because he is ignorant of their importance. He should be questioned about his sleep, whether he has dreams, etc. Mental sufferers nearly always sleep badly and are frequently tormented by insomnia and hallucinations. The inebriate imagines he is being pursued by disgusting, misshapen creatures, from which he cannot escape. Epileptics, and frequently also hysterical persons have peculiar obsessions. They fancy they cannot perform certain actions unless they are preceded by certain words and gestures. The susceptibility of the patient to suggestion should also be tested, to determine what value can be attached to his assertions. Sufferers from hysteria and general paralysis are like children, highly susceptible to suggestion, not necessarily of an hypnotic nature. If you tell an hysterical person with conviction that he suffers pain in a certain part of his body, is feverish or pale or something of the sort, he will inform you spontaneously after a few minutes that he feels pain or fever, etc. After a crime of a startling nature has been committed by some unknown person, it not unfrequently happens that some hysterical subject, generally a youth, who imagines he has been accused of the crime by the neighbours or his acquaintances, becomes convinced that he is really guilty and gives himself up to the police. _Speech._ Special attention should be directed during the examination to the way in which the patient replies to questions and his mode of pronunciation. There may be peculiarities of pronunciation and stammering, characteristic of certain forms of mental alienation, or at any rate of some nervous anomaly; or articulation may be tremulous and forced, as in precocious dementia and chronic inebriety. In other cases the words are jumbled and confused, especially if long and difficult. In the first stages of progressive paralysis the letter _r_ is not pronounced. To test this anomaly, which is of great importance in the diagnosis, the patient should be requested to pronounce difficult words, such as, corroborate, reread, rewrite, etc. In order not to lose such valuable indications, in cases where personal examination is impossible, phonograph impressions of conversations between the patient and some third person will serve as a substitute.