Presentence investigation report
A presentence investigation report (PSIR) is a legal document that presents the findings of an investigation into the "legal and social background" of a person convicted of a crime before sentencing to determine if there are extenuating circumstances which should influence the severity or leniency of a criminal sentence. The PSIR is a "critical" document prepared by a probation officer via a system of point allocation, so that it may serve as a charging document and exhibit for proving criminal conduct. The PSIR system is widely implemented today.