The offenders included were the subjects of investigations by the Investigations Branch of the CSC and were residing in CSC’s institutions or in the community during the incident. [...] The proportion of Aboriginal offenders in the population was comparable to the proportion in the overall federal offender population. [...] The proportion of the self-injury events that occurred in the Prairie and Quebec regions was low relative to the proportion of CSC’s population in these regions while the proportion of self-injury events that occurred in the Atlantic and Pacific regions was higher. [...] Given the evidence in the literature that the behaviours are distinct, we hypothesise that there will be a differences both in the profile of the offenders involved in incidents of SIB and those who died by suicide and in the circumstances surrounding the incidents. [...] None of the offenders had an initial self-injury report followed by a suicide investigation (i.e., none of the self-injurers escalated to suicide during the period that was under investigation) and therefore for the purposes of the offender profiles, the suicide and self-injury groups are mutually exclusive.