insane, but, strictly speaking, probably vaguely knew the nature and quality of their acts and that they were wrong.  In a few of these the juries convicted of murder in the first degree because the circumstances surrounding the homicides were so brutal that the harshness of the technical doctrine they were required to apply was overshadowed in their minds by their horror of the act itself.  In other cases, where either the accused appeared obviously abnormal as he sat at the bar of justice, or the details of the crime were less abhorrent, they convicted of murder in the second degree in accordance with the reasoning set forth in the foregoing paragraph.  The writer seriously advances the suggestion that the more the brutality of a homicide indicates mental derangement the less chance the defendant has to secure an acquittal upon the plea of insanity.

And this leads us to that increasingly large body of cases where the usual scepticism of the jury in regard to such defences is counterbalanced by some real or imaginary element of sympathy.  In cities like New York, where the jury system is seen at its very best, where the statistics show seventy per cent. of convictions by verdict for the year 1907, and where the sentiment of the community is against the invocation of any law supposedly higher than that of the State, our talesmen are unwilling to condone homicide or to act as self-constituted pardoning bodies, for they know that an obviously lawless verdict will bring down upon them the censure of the public and the press.  This is perhaps demonstrated by the fact that in New York County a higher percentage of women are convicted of homicide than of men.

But the plea of insanity, with its vague test of responsibility, whose terms the juryman may construe for himself (or which his fellow-jurors may construe for him) offers an unlimited and fertile field for the “reasonable” doubt and an easy excuse for the conscientious talesman who wants to acquit if he can.  Juries take the little stock in irresistible impulses and emotional or temporary insanity save as a cloak to cover an unrighteous acquittal.

In no other class of cases does “luck” play so large a part in the final disposition of the prisoner.  A jury is quite as likely to send an insane man to the electric chair as to acquit a defendant who is fully responsible for his crime.

To recapitulate from the writer’s experience: 

(1) The ordinary juror tends to be sceptical as to the good faith of the defence of insanity.

(2) When once this distrust is removed by honest evidence on the part of the defence, he usually declines to follow the legal test as laid down by the court on the general theory that any one but an idiot or a maniac has some knowledge of what he is doing and whether it is right or wrong.

(3) He applies the strict legal test only in cases of extreme brutality.

(4) In all other cases he follows the medical rather than the legal test, but instead of acquitting the accused on account of his medical irresponsibility, merely convicts in a lower degree.