The correct answer is Examining age at first arrest as a predictor of adult criminal history.
The participation of the prison population in research projects is quite controversial. The greatest difficulty is found in the fact of the individual's autonomy, that is, the his ability to decide on his participation in research projects may be impaired due to its legal condition. Historically, the reeducated were used in many research projects, especially where risks were high, including many of them to death or irreparable damage to their well-being and health as one all.