SIOUX FALLS, S.D.(KELO)- A conflict of interest case that caused a legislator(Jessica Castleberry) to resign this year may be more common than anyone realized.

Governor Noem asked the Court for an advisory ruling on what constitutes a conflict of interest.

House Majority Leader Will Mortenson says the Court’s final ruling could send very significant shockwaves through state government.

Committee members say there are 20 to 25 legislators that could have some level of conflict.

All 105 legislators are being sent a letter to outline any potential conflicts they might have.