Prins was born April 15, 1951 in Lacombe, Alberta. After high school, he worked a variety of agriculture and construction jobs, including two years in oilfield construction northeast of Tuktoyaktuk, Northwest Territories, and a year in refinery maintenance in Edmonton. In 1974, Prins bought a farm near Gull Lake, Alberta where he grew grain and hay, and raised cattle, hogs, elk and bison.
Prins was elected to a second term representing the constituency of Lacombe-Ponoka in the 2008 provincial election, where he received 58 per cent of the vote. The constituency race garnered national media attention with Alberta Greens candidate Joe Anglin thought by many to be the Alberta Green's best chance at earning its first seat in a provincial legislature. Anglin took 23 per cent of the March 2008 vote.
Prins was, up to March 2012, the chair of the Policy Field Committee on Resources and Environment, and the Standing Committee on Privileges and Elections, Standing Orders and Printing. He resigned from this position, soon after it was revealed that the committee had never met, yet the committee members were receiving pay for being on the committee. On March 20, 2012, Prins also announced he would not seek re-election. He was also a member of the Treasury Board and the Cabinet Policy Committee on Resources and the Environment.
Prins was first elected in 2004, when he received 53 per cent of the vote in his constituency. Since being elected, Prins has sat on numerous committees. He has chaired the Seniors Advisory Council, MLA Task Force for Seniors, the Review of Local Authorities Election Act and Rural Development Strategy. He has also served as deputy chair of the Public Accounts Committee.
Prior to entering provincial politics, Prins was reeve of Lacombe County from 2001 to 2004. He was a founding member of the North Red Deer River Regional Water Services Commission (2004), a process he saw to completion as an MLA. He has also served as chair of the Lacombe County Agricultural Service Board.
He is a member of Woodynook Christian Reformed Church in Blackfalds, Alberta, past chair of the Lacombe Christian School Board and former vice-chair of King’s University College Board of Governors.
Prins has volunteered on community developing trips to Mali, Kenya, Russia and Armenia. He also participated in a project building water systems throughout rural Sierra Leone, where he was named an honorary Kuranko tribesman.