Order for a Pre-sentence Investigation and Report (SIR) is an order issued by a court that requires a probation officer to conduct an investigation into the defendant's background and present circumstances prior to sentencing. The investigation includes: a review of the criminal history, a personal interview with the defendant, gathering information from friends and family, obtaining mental health and substance abuse assessments, and a review of any pre-sentence report prepared by the prosecution. The purpose of the SIR is to provide the court with a full picture of the defendant's life and any mitigating factors that could influence the court's decision when determining a sentence. There are two types of Order for a Pre-sentence Investigation and Report: the Pre-Sentence Investigation (PSI) and the Pre-Sentence Report (PSR). The PSI is a comprehensive report that includes information about the defendant's personal and criminal history, including prior convictions, pending charges, and any relevant psychological or medical issues. The PSR is a shorter document that focuses more on the impact of the current offense on the defendant and the community. It may also include a recommendation for a specific sentence or alternative sanctions.