Quote:
A public official becomes an officer de facto by exercising his or her duties:
(1) without a known appointment or election, but under circumstances of reputation or acquiescence that were calculated to induce people, without inquiry, to submit to or invoke his or her action supposing him or her to be the officer he or she assumed to be.
(2) under color of a known and valid appointment or election, but where the officer fails to conform to some precedent, requirement, or condition, as to take and oath, give a bond, or the like:
(3) under color of a known election or appointment, void because the officer was not eligible, because there was a want of power in the electing or appointing body, or by reason of some defect or irregularity in its exercise, the ineligibility, want of power, or defect being unknown to the public; or
(4) under color of an election or an appointment by, or pursuant to, a public unconstitutional law, before the law is so adjudged.