A member of the 'Evil 8' child abuse ring has been freed from jail on parole after serving just over three-and-a-half years in prison.

Troy Phillip Milbourne was sentenced in 2016 to five years and three months in prison after pleading guilty to three counts of sexual penetration of a child under 13 and four counts of indecent dealings with a child under 13.

Milbourne was one of eight men arrested by police in 2015.

Milbourne was one of eight men arrested by police in 2015 after they discovered the father of a 12-year-old girl had been pimping her out to other men so they could sexually abuse her.

Milbourne, who lived in South Bunbury at the time, responded to an online ad from the father and engaged in a number of sexual acts with the girl in 2014 before being arrested.