(a) Except as specified in subdivision (b), the procedures specified in Article 8 (commencing with Section 11435.05) of Chapter 4.5 of Part 1 of Division 3 of Title 2 of, and in Section 11513 of, the Government Code apply to the proceedings conducted by the Department of General Services pursuant to this chapter.
(b) Notwithstanding subdivision (a), Sections 801, 802, 803, 804, and 805 of the Evidence Code apply to the proceedings conducted by the Department of General Services pursuant to this chapter.
(c) The Department of General Services may consider evidence presented by any person against whom a demand was made pursuant to subdivision (c) of Section 80920. The evidence presented by that person shall become a part of the record upon which the Department of General Services shall base its decision.