What would you say, is specific to the logotherapeutic understanding of criminality?
Logotherapy is a science that comes from a three-dimensional ontological model of a person. It looks at the problem of criminality, from similar ontological perspective. At the heart of the problem, in this concept and through this aspect, is the lack of meaning in life.

Per Frankl’s hypothesis, focus here is on the presence of the existential vacuum – which is the single most important contributing factor in the aetiology of criminality.
The central principle in the logotherapy of criminality is the assertion that criminal behavior, and other such things such as suffering and boredom, are rooted in lack of meaning in life.

It has been scientifically observed that criminality and purpose in life are inversely related. Existential frustration and vacuum is the cause of much crime. A vicious circle/cycle ensues whereby the more one commits offences, the more likely one is to be sentenced to longer terms of imprisonment, and the less likely one is to augment a sense of purpose in life; and therefore, more likely to continue to commit crimes, when released.

The predominant factor leading to incarceration, is, the lack of meaning in one’s life.
These claims have been scientifically confirmed. From what I read as part of this course, the statistical results of rehabilitation measures, as part of the courses conducted for former prisoners, clearly indicate significant decrease in relapse rates after people have acquired their current meanings of life.

Frankl also establishes a link between drug addiction, alcoholism, suicide, criminality and the feeling of meaninglessness. I completely share and agree with this position.
In relation to the link between addiction and crime, Shrum states that over 80% of those incarcerated, committed the offense under the influence of drugs or alcohol. The association of alcohol/drug related biochemical bodily changes and participation in crimes, is clearly seen from these statistics.

Shrum writes: ‘Logotherapy holds great promise in restoring the “will to meaning” for all those who have lost it, and not just for those in jail, prison, or drug / alcohol rehabilitation programs’.

Below, I quote from what I have read, which clearly demonstrates how it is possible to distance oneself, at least to a certain level of involvement, from crime, through acquiring the meaning of one’s life.

Barber maintains that logotherapy was ‘particularly applicable to the treatment of juvenile delinquents’. Barber worked with young people in a rehabilitation setting and found that the lack of meaning and purpose appeared to be present in the lives of youths in crisis, almost always. According to Barber, he has one of the highest rehabilitation success rates in the US, with a recidivism rate of less than 17%, against an average of about 40%. He writes that his program ‘builds responsibility within each of the boys’. It is logo-education in practice. Furthermore, 'a logotherapeutic approach offers great possibilities for the field of criminality research and prevention, as evidenced by a mean increase in the 'will to meaning' from 86.13
to 103.46 within 4 months, among the group that participated in Dr. Barber's treatment program.

I’m sure that if lack of meaning, is central to criminality in the lives of offenders, then having acquired the meaning of life, they will no longer feel the need to commit crimes. I'm glad that such tools are available. Unfortunately, in Russia they are not used currently.