Australia

Serial rapist given reduced sentence for having the cognitive level of a 14 year old boy. He has been a known rapist for decades but they will still let him out to do it again.

From wikipedia:

In 1976, Pinder was found guilty of unlawful carnal knowledge of a teenage girl in Miami, Florida. He was given five years probation.[21][22]

In 1992, Pinder faced charges of attempted sexual assault. He was convicted by the Western Australian Supreme Court and was sentenced to 18 months' jail.[23][24] In the following year he was also found guilty of raping a 23-year-old woman and a 16-year-old girl; the three offences had occurred between 1988 and 1990.[21] In 1996, he was sentenced to five years' jail for sexual offences involving a 15-year-old girl.[25][26] In 2001, he was acquitted in the New South Wales District Court on a charge of raping a 19-year-old woman the previous year.[27] In 2013, he was arrested on a charge relating to an alleged rape in 1987. He was cleared in August 2016.[28]

In 2021, Pinder was arrested and charged with stalking a woman in Sydney. He was sentenced to 15 months' imprisonment.[29] In April 2023, he pleaded guilty to two counts of sexual assault that occurred in November 2009 and March 2021.[21] In March 2024, he was sentenced to eight years prison for the two assaults.[20]

Pinder was assaulted in prison in 2021 and 2023, requiring him to undergo CT and MRI scans for his injuries.