17-229-100 Me. Code R. § 06
The presiding officer may require that all evidence be material and relevant to the subject matter of the hearing. Evidence which is irrelevant may be excluded. The rules of privilege shall be observed.
The presiding officer may take official notice of all State Laws, official rules and regulations, generally recognized facts and those special facts, which because of the expertise of the departmental officer are known to him. Facts so noted shall be indicated as such on the record.
All documents, materials and objects offered into evidence as exhibits, if accepted shall be numbered. Documentary evidence may be received in the form of copies or excerpts if the original is not readily available. Parties introducing documentary evidence should be prepared to furnish copies to adverse parties.
All documentary and real evidence admitted as part of the record shall be available for the public inspection.
All objections to rulings of the presiding officer regarding evidence or procedure and the grounds for the objection shall be timely stated during the course of the hearing.
An offer of proof may be made in connection with an objection to a ruling of the presiding officer excluding or rejecting any testimony or question on cross-examination.
17-229 C.M.R. ch. 100, § 06