"Redirecting Structured Intervention Unit (SIU) Authorizations: Trends in Five-Day Decision-Making" (English, HTML)

"Redirecting Structured Intervention Unit (SIU) Authorizations: Trends in Five-Day Decision-Making": English HTML file. From Correctional Service of Canada, updated Oct 2026. View metadata, licence and the direct download on CanQuery.

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2026-10-14

Structured Intervention Units (SIUs) were incorporated into the Correctional Service of Canada (CSC) on November 30, 2019. As per section 34.1 of the Corrections and Conditional Release Act (CCRA), SIUs are intended to provide intervention-based accommodation to individuals whose placement in a mainstream unit would interfere with the safety of others or security of the institution (34.1 A), the individual’s own safety (34.1 B), or the integrity of an investigation (34.1 C). Following initial authorization to an SIU, reasonable alternatives are to be explored in advance of the Institutional Head’s decision to approve or not approve the authorization within five working days (“five-day decision”). The current analysis examines the relative prevalence of cases in which the SIU authorization corresponded with a decision to end the stay within a five-day period. Drawing on a dataset of SIU authorizations between November 30, 2019, and March 31, 2025, patterns in five-day decisions were explored, including trends over time and across regions, with a comparison between SIU sites and Restricted Movement (RM) sites

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