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Pleading Insanity Should be Abolished from the Legal System

The insanity defence refers to that branch of the concept of insanity which defines the extent to which men accused of crimes may be relieved of criminal responsibility by virtue of mental disease. The terms of such a defence are to be found in the instructions presented by the trial judge to the jury at the close of a case. These instructions can be drawn from any of several rules used in the determination of mental illness. The final determination of mental illness rests solely on the jury who uses information drawn from the testimony of “expert” witnesses, usual professionals in the field of psychology. The net result of such a determination places an individual accordingly, be it placed in a mental facility, incarceration, or outright release. Due to these aforementioned factors, there are several problems raised by the existence of the insanity defence. Problems such as the actual possibility of determining mental illness, justifiable placement of judged “mentally ill” offenders, and the overall usefulness of such a defence.

In all, I believe that these problems, as well as others which will be mentioned later, lead us to the conclusion that the insanity defence is useless and should be abolished entirely. Insanity is a legal, not a medical definition. Therefore, mental illness and insanity are not synonymous: only some mental illness constitutes insanity. Insanity, however, includes not only mental illness but also mental deficiencies. Due to this, there are problems in exactly how to apply a medical theory to a legal matter (Herman, 1983;128). The legal concepts of mental illness and insanity raise questions in a conflict between what is termed legalistic criminology and scientific criminology: mens rea, punishment v. treatment, responsibility, and prisons v. hospitals. This debate seesaws to and fro amidst a grey area between law and science. The major difficulty with a theory such as mental illness is that it is just that, a theory. To scientists, theories are a way of life but applied to the concept of law theories become somewhat dangerous. By applying a loose theory such as mental illness to the law we are in essence throwing the proverbial “monkey wrench” into the wheels of justice.

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TESTING FOR INSANITY. At the centre of the legal use of insanity lies the men’s rea. Every crime involves a physical act, or actus reus, and a mental act, or men’s rea, the non-physical cause of the behaviour. The men’s rea is the mental element required for a crime, and if absent excuses the defendant from criminal responsibility and punishment (Jeffery, 1985;49). The difficulty here lies in analyzing the men’s rea. In order to do this lawyers apply one of several rules used by psychologists. These rules range from the Irresistible Impulse Test to the M’Naghten Rule. Each of these rules approaches mental illness/capacity in a different way and in my opinion each falls short of actual proof. I will discuss each in detail.

The M’Naghten Rule The M’Naghten Rule, also known as the right-wrong test, arose in 1843 during the trial of Daniel M’Naghten who argued that he was not criminally responsible for his actions because he suffered from delusions at the time of the killing. The M’Naghten Rule reads: A defendant may be excused from criminal responsibility if at the time of the commission of the act the party accused was labouring under such a defect of reason, from a disease of the mind, as not to know the nature and the quality of the act he was doing, or if he did know it, that he did not know that he was doing what was wrong. Thus, according to the rule, a person is basically insane if he or she is unable to distinguish between right and wrong as a result of some mental disability.

Criticism of the M’Naghten Rule has come from both legal and medical professions. Many criticize that the test is unsound in its view of human psychology. Psychiatry, it is argued, views the human personality as an integrated entity, not divisible into separate compartments of reason, emotion, or volition (Herman, 1983;138). Additionally, the test is criticized for defining responsibility solely in terms of cognition. While cognitive symptoms may reveal disorder, they alone are not sufficient to give an adequate picture of such a disorder or determine responsibility. Also, it has been shown that individuals deemed insane by psychologists have possessed the ability to differentiate right from wrong. I believe that the major weakness of this test, however, lies in the fact that courts are unable to make clear determinations of terms such as disease of the mind, knowledge, and the nature and quality of the act.

The Irresistible Impulse Test This rule excludes from criminal responsibility a person whose mental disease makes it impossible to control personal conduct. Unlike the M’Naghten Rule, the criminal may be able to distinguish between right and wrong but may be unable to exercise self-control because of a disabling mental condition. Normally this test is combined with the M’Naghten Rule. Many of the criticisms of the Irresistible Impulse Test centre around the claim that the view of volition is so extremely narrow that it can be misleading. Just as the M’Naghten Rule focused on cognition rather than the function of the person in an integrated fashion, the Irresistible Impulse Test abstracts the element of volition in a way that fails to assess a person’s function in terms of an integrated personality. Additionally, it has been asserted that the concept at best has medical significance in only minor crimes resulting from obsession-compulsion and that seldom, if ever, can it be shown that this disorder results in the commission of a major crime (Seigel 1993;144).

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Such a claim is subject to the objection that it cannot be conclusively proven. Interestingly, it has been shown by many psychiatric authorities that no homicidal or suicidal crime ever results from obsession-compulsion neurosis. Another criticism of this test is the difficulty, if not the impossibility, of proving the irresistibility of the impulse, which the definition of the test requires. The jury, as I said earlier, has the final decision, and is faced with deciding when the impulse was irresistible and when it was merely unresisted, a task that psychiatrists suggest is impossible to perform. We are also able to argue that the test is one of volition. It is too narrow in that it fails to recognize mental illness characterized by brooding and reflection (Herman 1983;140). The test is misleading in its suggestion that where a crime is committed as a result of emotional disorder due to insanity, it must be sudden and impulsive. The Durham Rule The Durham Rule, also known as the Products Test, is based on the contention that insanity represents many personality factors, all of which may not be present in every case. It was brought about by Judge David Bazelon in the case of Durham v. the U.S. who rejected the M’Naghten Rule and stated that the accused is not criminally responsible if the unlawful act was the product of mental disease or defect.

The primary problem with this rule of course lies in its meaning. Again it is impossible for us to define mental disease or defect, and the product does not give the jury a reliable standard by which to base a decision. It is unnecessary to offer further criticism, for my purpose I believe this attempt fails at its onset. The Substantial Capacity Test Another test is termed the Substantial Capacity Test which focuses on the reason and will of the accused. It states that at the time of the crime, as a result of some mental disease or defect, the accused lacked the substantial capacity to (a) appreciate the wrongfulness of their conduct or (b) conform their conduct to the requirements of the law. This test is disputable in the fact that it is not only impossible to prove capable of reason or will, but to even test such abstracts seems absurd. Additionally, the term “substantial capacity” lies in question in that it is an abstract impossible to define.

INSANITY: HOW IT IS ESTABLISHED. The meaning of insanity is the legal definition as put forth in a rule such as the M’naghten Rule or whatever school of thought is in use on any given day. The legal test is applied in an adversary system which pitches lawyer against psychiatrist and psychiatrist against the psychiatrist. Because of this, the psychiatrist is often perceived not as a scientist but a partisan for the side which is paying for his testimony (Jeffery, 1985;56). The major problem, in this case, is that the use of a neutral expert is impossible to implement. In the end, the determination of insanity is a layman’s decision since it is the jury that ultimately decides whether the defendant is sane or insane. This of course is ludicrous since professional scientists cannot agree on the meaning of mental illness. How can a layman make such a decision especially after listening to contradictory testimony which is manipulated by opposing lawyers?

I believe that the major problem that we can point out here is in the futility of asking psychiatrists to testify in terms of legal concepts of insanity. The psychiatrist finds himself in a double bind: he has no medical definition of mental illness and he must answer questions from lawyers concerning legal insanity, right and wrong, and irresistible impulses. As stated by Packer: “The insanity defence cannot tolerate psychiatric testimony since the ethical foundations of the criminal law are rooted in beliefs about human rationality, deterribility, and free will. These are articles of moral faith rather than scientific fact.”

MENTAL ILLNESS AND CRIMINAL BEHAVIOR. In the insanity defence, we have no variable independent of the criminal behaviour we are studying. Insanity refers to a class of behaviours known by observing the behaviour of the patient, and criminality is a class of behaviour likewise known by observing the behaviour of the defendant. We are involved in classification and labels. Where we have one class of behaviours labelled as schizophrenia, and the other class labelled as crimes, what we have are two co-existing classes of behaviour in the same individual, and not a cause or effect relationship (Simon, 1988;47). A person can be Catholic and commit a robbery without a casual relationship existing; likewise, a person can be schizophrenic and a robber without a casual relationship existing between the two classes of behaviour. Coexistence does not show a causal relationship. Behaviour cannot cause behaviour.

What we must do, in order to prove a relationship between mental illness and criminal behaviour is produce some independent link between the two classes of behaviour on a biochemical level. We must have a definition of mental illness independent of the behavioural symptoms in order to establish a causal relationship between crime and mental illness. There is such a view and it is termed the Biological Psychiatric view. The view basically states that there is some defect or malfunction in the actual make-up of the brain of an individual which causes schizophrenia. This same defect then causes criminal behaviour such as robbery or murder. The problem here is that we have no actual way of mapping the brain and conclusively determining exactly what portion thereof is responsible for either type of behaviour much less that one area is responsible for both. In essence even if true this theory is unprovable.

There is also a statistical relationship between crime and mental illness. Guttmacher and Weihofen found 1.5 percent of the criminal population psychotic, 2.4 percent mentally defective, 6.9 percent neurotic, and 11.2 percent psychopathic (Jeffery, 1985:66). These figures are very unconvincing. Additionally they are based on old diagnostic categories and procedures which are most unreliable. Also, the meaning of neurotic or psychotic or psychopathic is uncertain within the context of these studies and they do not refer to modern biological categories of brain disease. Terms such as insanity, mental illness, and men’s rea have no scientific meaning, therefore we must leave unspecified and uncertain the relationships between insanity, mental illness and criminal law. We certainly cannot conclude that mental illness bears any relationship to diseases of the brain, nor can we conclude that mental illness or insanity causes criminal behaviour.

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THE MYTH OF MENTAL ILLNESS. Not only is there no agreement as to the meaning of insanity and mental illness, but to add further confusion, there is a school of thought that states that mental illness is a myth and does not exist. This approach is found in the works of such persons as Thomas Szasz (1961;1963) who argues that mental illness is a myth and label applied to behaviour by psychiatrists who are making political and ethical decisions, and Laing (1969;1971) who claims that labels are being used by society to impose violence and control on people. View such as these and others deny the physical and biological basis of behavioural disorders. They separate completely biology and behaviour, brain and behaviour, and mental and physical. The fact that we refer to “mental” disease has been cited as evidence that we do not regard it as a disease but as something outside the realm of biological science.

Szasz states, for example, that the psychiatrist confuses physical disease and neurological disorders with mental diseases. A study in evidence of this was done by Rosenhan (Ziskin, 1975:54) known as “Being Sane in Insane Places.” Rosenhan, a psychologist, placed eight normal people in mental hospitals as “pseudo-patients.” They were diagnosed as schizophrenic, and later on when they appeared normal, rediagnosed as schizophrenia in remission. After one experiment one hospital challenged Rosenhan to send them “pseudo-patients” during the next several months. At the end of the period, the hospital announced that they had discovered that 12 percent of their admission were “pseudo-patients” from Rosenhan went in fact none had ever been sent.

USEFULNESS OF THE INSANITY DEFENSE. As we have already seen, there is much confusion dealing with the placement of insanity and mental illness, it’s the definition, and even it’s very existence. We have likewise seen the use of several of the various testing techniques used to determine mental illness and its shortcomings. This information alone would lead us to believe that the insanity defence needs at least to be revised and improved in many areas. What we have looked at thus far is what precedes the actual judgment of sanity. What we have not looked at, however, is the implementation of the actual judgment of sanity. That is to say, the actual results of the defence when successful. I believe that it is here that we will see the most heinous travesties of justice. There are several decisions that can be reached when insanity is at last proven. These judgements include not guilty by reason of insanity (NGI), and guilty but mentally ill (GMI), with the later verdict not being implemented until the early eighties in an attempt to reform the insanity defence and decrease the amount of NGI verdicts.

The NGI verdict is the more dangerous verdict and the one which I believe has the strongest argument against the insanity defence. The objection here is that it allows dangerous men to return to the streets where they commit heinous crimes. Of the 300 persons committed on NGI verdicts 80 percent were released from mental hospitals by psychiatrists, and in several instances, these mental patients went on to kill again (Jeffery, 1985;73). My belief is that psychiatrists and mental hospitals do not cure the mentally ill. This is the reality of the insanity defence which I find irrefutable; in many cases, criminals are released due to loopholes such as the insanity defence to simply commit the same crime again. Even is these cases make up 10 out of 100,000, there now exist 10 crimes that need not have happened.

The guilty but mentally ill approach has three serious flaws. First, it strikes indirectly at the men’s rea requirement, introducing the slippery notion that the accused had partial, but not complete, criminal intent. Second, it creates a lesser and included offence that judges and juries may choose as simply a compromise verdict. They believe the accused probably did something wrong and deserves some punishment, but they are unwilling to bring in a verdict of guilty on the top charge. The GMI verdict would allow them to split the difference. Finally, the GMI verdict is fraudulent on the issue of treatment. As proposed, it makes no provision for the treatment of the person who has been declared mentally ill.

The GBI option has already proved to be a bogus reform. A 1981 Illinois law added the GMI as an additional verdict, retaining the traditional insanity defence. In Cook County, verdicts of not guilty by reason of insanity actually increased from 34 to 103 between 1981 and 1984. At the same time GMI went from 16 in 1982, the first year the option was available, to 87 in 1984. There has been much evidence of a “hydraulic” effect that was contrary to the law’s intent. In both Illinois and Michigan, GMI verdicts involved people who would otherwise have been found guilty, not defendants who would have been found not guilty by reason of insanity (Walker, 1994;155-156). The real function of the GBI option is to appease public opinion. The public has little concern for the details of what actually happens to a mentally ill criminal defendant. Basically, it wants a symbolic statement of “guilty.” In practice, the GMI verdict has as much meaning as “guilty but brown eyes.”

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How dangerous is the GMI verdict? As we say with the NGI verdict, many extremely dangerous mentally ill criminals were simply released onto the streets where they committed the same crimes. Does the GMI verdict solve this problem? We have some “natural experiments” on this question rising from some court decisions. A 1971 decision forced to a reassessment of 586 inmates of Pennsylvania’s Fairview State Hospital for the Criminally Insane who were placed there under the GMI verdict. Over two-thirds were eventually released. Over the next four years, 27 percent were rearrested. Eleven per cent were rearrested for violent crime. Including some others who were rehospitalized for a violent act, a total of 14.5 percent of those released proved to be dangerous.

ABOLISH THE INSANITY DEFENSE. Abolishing the insanity defence is easier said than done for the simple reason that the men’s rea requirement remains a fundamental legal principle. The proposal that “mental condition shall not be a defence to any charge of criminal conduct” could be interpreted in one of two ways. The broader interpretation would mean that absolutely no aspect of the mental condition could be taken into account. In effect, this interpretation would abolish the men’s rea requirement altogether. The prosecution would not have to prove anything about the accused’s mental state. This is unnecessary. For one thing, it would wipe out the distinctions that separate first-degree murder, second-degree murder, and manslaughter. It is doubtful that anyone against the insanity defence would choose to take this approach. So sweeping, in fact, would be it’s an effect, that it would probably be declared unconstitutional. A more limited reading of the wording “mental condition shall not be a defence to any charge of criminal conduct” would mean that an affirmative plea of “not guilty by reason of insanity” could not be raised.

The crucial distinction here is drawn between affirmative and ordinary defences. An ordinary defence is simply an attempt to shown that the prosecution has failed to connect the accused with the crime, a defence used in everyday law. An affirmative defence is raised when the prosecution has connected the accused with the crime, as in an example of self-defence. The defence argues that, yes, the accused did shoot and kill the person and did so intentionally, but because the act was committed in self-defence the accused does not bear criminal responsibility for it. The same is true in the case of a criminal act committed under duress. The insanity defence, in this respect, is an affirmative defence. It is this usage that needs to be abolished. In cases such as self-defence, it may be an adequate and totally acceptable defence, for in how many cases do you hear of a man being acquitted due to a self-defence plea returning to the streets in order to kill again? To draw a comparison between the two and argue that both defences are necessary to the total order is naive and unfounded.

CONCLUSION. The law of insanity involves the concepts of men’s rea and punishments, as does the criminal law in general. Insanity is a legal concept, not a medical concept, and insanity is defined within the context of an adversary system wherein psychiatrists and lawyers battle one another over the meaning of terms such as “right and wrong” and “ability to control one’s behaviour.” Mental illness and mental disease are psychoanalytic concepts, not scientific concepts. Mental illness is defined by talking to people or by giving them written tests, and there is no agreement among psychiatrists as to the meaning of this illness or whether or not it really exists. Some psychiatrists call mental illness a myth. The psychoanalyst has not been successful in treating or predicting mental illness. The psychoanalyst has never established a causal relationship between mental illness and criminal behaviour.

The insanity defence would require both a mental illness and a relationship between the illness and criminal behaviour, neither of which could be scientifically established. Of the criminals both acquitted and convicted using the insanity defence, a good number have shown conclusive evidence of recidivism. Many dangerous persons are allowed to return to the streets and many non-dangerous persons are forced into facilities due to an insanity plea adding further confusion and injustice within both the legal and medical systems. In my opinion, the insanity defence is impossible to maintain on the basis of rules such as the M’Naghten Rule, and the relationship between law and psychiatry must be re-established on a more scientific level, based on the neurological work now going on in the brain sciences. The insanity defence is impractical in its present usage and should therefore be abolished.

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