An Alberta aboriginal band has asked a judge to overturn the approval of a $3-billion pipeline project because the provincial government ruled the First Nation didn't have the right to be consulted about it. In court documents filed Thursday, the Athabasca Chipewyan First Nation says Alberta's aboriginal consultation office violated the band's constitutional rights when it said the band wasn't directly affected by TransCanada's Grand Rapids proposal, even though it crosses land claimed as traditional territory.