Penner won the
BC Liberal nomination to contest the riding of
Chilliwack in the
1996 provincial election, over the incumbent
Bob Chisholm. Penner was elected the riding's MLA, and was re-elected in
2001 and
2005 in the riding of
Chilliwack-Kent with some of the highest margins of victory in the province. He was re-elected in the
2009 provincial election to represent the reconfigured
Chilliwack-Hope constituency (which includes
Agassiz,
Harrison Hot Springs and the
Fraser Canyon) with more than 53% of votes cast. As an elected representative, Penner was an early advocate for expanding the use of Canada's DNA database to help identify, catch and convict violent criminals, and solve cases involving missing persons. He also introduced a motion in the legislature calling on the provincial government to establish an
Amber alert system in BC to assist police in safely returning abducted children to their parents. The motion passed in 2003, and the Amber alert system became operational in 2004. Penner became known as an advocate for small-hydro, wind power and other alternative energy sources after helping lead unprecedented community opposition in the Fraser Valley to the proposed Sumas Energy 2 power project. He led protests against the
New Democratic Party Government's decision in 1997 to close the Chilliwack Courthouse. Ultimately, the decision was reversed and a new Courthouse was constructed with the support of the City of Chilliwack. Responding to a need for increased road safety, Penner approached the Minister of Transportation to address growing concerns about collisions on
Highway 9 near
Rosedale. This resulted in the first modern roundabout on a BC highway, reducing accidents and injuries. Following his re-election in 2005, he was named to the cabinet as Minister of Environment. In June 2007, Penner announced he would continue working as a Minister while receiving treatment for
leiomyosarcoma, a rare type of
cancer. He also served as Minister responsible for Water Stewardship and Sustainable Communities from 2005 to 2008, and Minister Responsible for Climate Action from January to June 2009. Penner remained as Attorney General after
Christy Clark was sworn in as premier in March 2011, but was replaced in the aboriginal portfolio by
Mary Polak. During his time in provincial politics, Penner was recognized by
Vancouver Magazine as one of the 50 most influential people in British Columbia. == Post politics ==