5 GCA § 7103: Taxpayer Standing to Sue.

Any taxpayer who is a resident of Guam shall have standing to sue the government of Guam and any officer, agent, contractor, or employee of the Executive Branch of the government of Guam for the purpose of enjoining any officer, agent, contractor, or employee of the Executive Branch of the government of Guam from expending money without proper appropriation, without proper authority, illegally, or contrary to law, and to obtain a personal judgment in the courts of Guam against such officers, agents, contractors, or employees of the government of Guam and in favor of the Government of Guam for the return to the Government of Guam of any money which has been expended without proper appropriation, without proper authority, illegally, or contrary to law. For purposes of this Chapter, the Governor and Lt. Governor of Guam are officers of the government of Guam, and are included within the scope of this Chapter.