SDCL § 5-22-4: Actions to enforce or determine lien--Parties to action--Assertion of lien by answer.

Any person having such lien may bring an action to enforce the same in the circuit court for the county where the work or improvement or any part thereof shall be situated. Actions may likewise be commenced to determine such lien by the public body or the contractor. The plaintiff in any such action must make all persons who shall have filed liens, the contractor, and the public body parties thereto.

Any person claiming a lien, if he be a defendant, may set forth such lien by answer.