The latter are but a variety of the occasional criminals, but their characteristics are so specific that they may be very readily distinguished. In fact Lombroso, in his second edition, supplementing the observations of Despine and Bittinger, separated them from other criminals, and classified them according to their symptoms. I need only summarise his observations.
In the first place, the criminals who constitute the strongly marked class of criminals by irresistible impulse are very rare, and their crimes are almost invariably against the person. Thus, out of 71 criminals of passion inquired into by Lombroso, 69 were homicides, 6 had in addition been convicted of theft, 3 of incendiarism, and 1 of rape.
It may be shown that they number about 5 per cent. of crimes against the person.
They are as a rule persons of previous good behaviour, sanguine or nervous by temperament, of excessive sensibility, unlike born or habitual criminals, and they are often of a neurotic or epileptoid temperament, of which their crimes may be, strictly speaking, an unrecognised consequence.
Frequently they transgress in their youth, especially in the case of women, under stress of a passion which suddenly spurns constraint, like anger, or outraged love, or injured honour. They are highly emotional before, during, or after the crime, which they do not commit treacherously, but openly, and often by ill- chosen methods, the first that present themselves. Now and then, however, one encounters criminals of passion who premeditate a crime, and <p 40>carry it out treacherously, either by reason of their colder and less impulsive temperament, or as the outcome of preconceived ideas or a widespread sentiment, in cases where we have to do with a popular form of lawlessness, such as the vendetta.
This is why the test of premeditation has no absolute value in criminal psychology, as a distinction between the born criminal and the criminal of passion; for premeditation depends especially on the temperament of the individual, and is exemplified in crimes committed by both anthropological types.
Amongst other symptoms of the criminal of passion, there is also the precise motive which leads to a crime complete in itself, and never as a means of attaining another criminal purpose.
These offenders immediately acknowledge their crime, with unassumed remorse, frequently so keen that they instantly commit, or attempt to commit suicide. When convicted—as they seldom are by a jury—they are always repentant prisoners, and amend their lives, or do not become degraded, so that in this way they encourage superficial observers to affirm as a general fact, and one possible in all circumstances, that ameliorative effect of imprisonment which is really a mere illusion in the case of the far more numerous classes of born and habitual criminals.
In these same offenders we very rarely observe, if at all, the organic anomalies which create a criminal type. And even the psychological characteristics are much slighter in countries where certain crimes of <p 41>passion are endemic, almost ranking amongst the customs of the community, like the homicides which occur in Corsica and Sardinia for the vindication of honour, or the political assassinations in Russia and Ireland.
The last class is that of occasional criminals, who without any inborn and active tendency to crime lapse into crime at an early age through the temptation of their personal condition, and of their physical and social environment, and who do not lapse into it, or do not relapse, if these temptations disappear.