The provision of the Massachusetts Law for the determination of the mental condition of persons under arrest or held under criminal charges is an excellent one and well worthy of consideration. This is covered by chapter 123 of the General Laws:—"If a person under complaint or indictment for any crime, is, at the time appointed for trial or sentence, or at any time prior thereto, found by the Court to be insane or in such mental condition that his commitment to a hospital for the insane is necessary for the proper care or observation of such person pending the determination of his insanity, the Court may commit him to a State hospital for the insane under such limitations as it may order." The Court may in its discretion employ one or more experts to examine such persons. These cases are on recovery returned by the hospital authorities to the custody of the Court. One of the interesting features of the Massachusetts Law is the provision relating to persons indicted for murder or manslaughter but acquitted by a jury by reason of insanity. Such cases are committed to a state hospital for life and can be discharged only by the Governor of the state, with the advice and consent of the Executive Council, when he is satisfied, after an investigation by the Department of Mental Diseases, that such a person may be discharged "without danger to others." Persons charged with a crime "other than murder or manslaughter" and acquitted by a jury by reason of insanity may also be committed by the Court to a state hospital "under such limitations as it deems proper" and such orders may be revoked at any time. A recent enactment (Chapter 415, Acts of 1921) provides that "Whenever a person is indicted by a grand jury for a capital offense or whenever a person, who is known to have been indicted for any other offense more than once or to have been previously convicted of a felony, is indicted by a grand jury or bound over for trial in the superior court, the clerk of the court in which the indictment is returned, or the clerk of the district court or the trial justice, as the case may be, shall give notice to the department of mental diseases, and the department shall cause such person to be examined with a view to determine his mental condition and the existence of any mental disease or defect which would affect his criminal responsibility. The department shall file a report of its investigation with the clerk of the court in which the trial is to be held, and the report shall be accessible to the court, the district attorney and to the attorney for the accused, and shall be admissible as evidence of the mental condition of the accused."