Section 26. Enforcement proceedings

Whenever the commission shall be of the
  opinion  that  a  public  utility company, corporation or person and the
  officers, agents or employees thereof is failing or omitting or is about
  to fail or omit to do anything required of it by any provision  of  this
  chapter  or  by order or regulation, adopted under the authority of this
  chapter or is doing anything or about  to  do  anything,  or  permitting
  anything  or  about  to  permit  anything  to  be done contrary to or in
  violation of any provision of this chapter or  an  order  or  regulation
  adopted  pursuant  to this chapter, the commission may direct counsel to
  the commission to commence  an  action  or  special  proceeding  in  the
  supreme  court  in  the name of the commission for the purpose of having
  such violations or threatened violations stopped and prevented.  Counsel
  to the commission shall thereupon begin an action or special  proceeding
  alleging the violation complained of and praying for appropriate relief.
  In  case  of  default  in  answer  or  after  answer,  the  court  shall
  immediately inquire into the facts and circumstances in such  manner  as
  the  court shall direct. Such other corporations or persons, as it shall
  seem to the court necessary or proper to join as  parties  in  order  to
  make  its  judgment  effective may be joined as parties to the action or
  proceeding. The final judgment in any such action or special  proceeding
  shall  either  dismiss the action or special proceeding, direct judgment
  as prayed for in the complaint or petition, or be in such other form  as
  the court may determine is just and reasonable.