Human behavior in any of its aspects is not a tractable beast. The behavioral scientist tries to fit his data into neat and exact categories from which reasonable similarities and differences may be observed. Unfortunately for neatness and the scientist’s desires, the world is always more complex than his best laid plans. The sex offender is no different from other objects of study. He refuses to commit only one type of sex offense and may indeed persistently commit a number of different types. Fortunately this is not common, and the crossover of offenders from one type of offense to another is different for the various offender groups. These differences in the degree of focus on specific offenses are part of the picture of sex-offense behavior in general.
In some cases offenders commit specifically one type of offense against persons in one age group. In others they stick to the general type, e.g., homosexual offenses, but the ages of the objects may vary. In another case the offender group may commit many different types of offenses with persons of varying ages. These differences are worth exploring for the light they cast upon the sex offender.
First we must define our terms, and the simplest way to do so is by example. For a homosexual offender vs. adults, the specific offense would be a homosexual offense with an adult; homosexual offenses with minors or children would be within his general-offense category, but would be nonspecific; all nonhomosexual offenses would be nonspecific and also outside his general category.
The groups displaying the greatest specificity are the homosexual offenders vs. adults and all three incest groups. Only 17 per cent of the offenses of the former were nonspecific. For the incest offenders the percentage ranges from 19 to 22. At the opposite extreme, the least specific groups are the aggressors vs. children and minors (with 46 and 51 per cent of their offenses nonspecific) and the homosexual offenders vs. children and minors (41 and 38 per cent). These homosexual offenders tend to cross over into other homosexual categories; the aggressors seem simply more polysexual in their offenses. The only other noteworthy finding is a tendency for the offenders or aggressors vs. children and minors of either sex to be less specific in their offenses than those who offend or aggress against adults.
Let us now examine the percentages of offenses that are not only nonspecific but outside the general category—for example, the non-homosexual offenses of the three homosexual-offender groups, and the offenses of the aggressors that lacked the element of threat or force. The least specific groups are the aggressors, next are the three heterosexual-offender groups, and following them is a mixture of homosexual and incest offenders. Those whose objects were adults were the most specific in their behavior. In fact, no incest offender vs. adults had any sex-offense conviction other than incest, and only 4 per cent of the convictions of the homosexual offenders vs. adults were for nonhomosexual offenses.
All of this sums up to the fact that homosexual and incest offenders are rather rigidly departmentalized in their sex-offense behavior (as measured by convictions) while the aggressors are quite prone to commit a variety of offenses. The greater specificity of the homosexual offenders is further illustrated by the fact that among all other offenders (except for the incest offenders vs. adults) the percentages of nonspecific offenses outside the general-offense category always strongly exceed the percentages of nonspecific offenses within the general-offense category. Among the homosexual offenders this situation is reversed: nonspecific homosexual offenses outnumber the nonhomosexual offenses.
Some comments about general-offense categories can be profitably made. Offenses against willing or acquiescent females constitute a large proportion—from 27 to 39 per cent—of what one can call the “outside-the-general-category offenses” of all sex offenders except the homosexual and incest offenders (who committed few or none), whereas offenses involving the use of force or threat represent a small proportion of this category. Aside from the incest and homosexual offenders, who committed very few or no such aggressions, from 11 to 28 per cent of the outside-the-general-category sex offenses were heterosexual aggressions.
Incest offenses were rare. A range of 0 to 6 per cent includes all but the offenders vs. adults (12 per cent of whose offenses were incest) and the aggressors vs. adults (8 per cent).
Homosexual offenses were uncommon; no group other than the homosexual offenders had more than 17 per cent of its offenses of this sort.
Peeping was, in general, rare. Seven groups had no peeping offenses; among the remaining groups peeping accounted for 1 to 19 per cent of the outside-the-general-category offenses. Of these groups only three (the offenders and aggressors vs. adults and the exhibitionists) had percentages exceeding 6 per cent.
Exhibition was variable but often constituted a substantial proportion of outside-the-general-category offenses—from 0 to 43 per cent. Aside from this 43 per cent figure for the peepers, exhibition ranged up to 34 per cent. The homosexual offenders, as one might expect, and the incest offenders were low in exhibition offenses.
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