The included data were obtained from the claims process for medical and social services delivered to mental health and substance abuse patients across a network of publically-funded care providers, as well as data from the criminal justice system database.
Data were combined from electronic systems within a US mental health ecosystem that included mental health and substance abuse services, as well as data from the criminal justice system.
This overreliance on data from the criminal justice system means that we must acknowledge that the efficiency and security trade-off and the intersection between human and social capital may be different among groups involved in illicit drug trade that do not come to the attention of law enforcement.
The reason that the number of observation years is slightly lower than the number of follow-up years is that data from the criminal justice database were only available up until 2004, and most subjects were interviewed later than 2004.
The overall proportion of subjects who would be classified as having been charged with a given crime differed very little between data from the criminal justice database and self-reported events.
Also, clearly, this kind of registry study can not describe all criminal acts for which a client is never sentenced, and as some offenses may be more likely than others to lead to a new verdict, registry data from the criminal justice system can not fully reflect the true extent and features of criminal behaviour.
Separate data from the Justice Department show a long trend down in federal tax prosecutions.
Most murder in the United States is intra-racial, according to data from the Justice Department: White people are more likely to kill white people, and black people are more likely to kill black people.
In 2012, there were some 1,570,000 inmates in state and federal prisons in the U.S., according to data from the Justice Department.
In a recent article, NPR reporter Joseph Shapiro said that unpublished federal crime data from the Justice Department found that "people with intellectual disabilities are sexually assaulted at a rate seven times higher than those without disabilities".
In previous descriptive data from the Swedish criminal justice system [ 36], although with no further analysis of risk factors, exceptionally high rates of recidivism were reported in sub-groups of clients.
