Any board, commission, council, committee or other agency established or designated pursuant to sections 7-148i to 7-148n, inclusive, and subparagraph (B) of subdivision (9) of subsection (c) of § 7-148, may be given the following powers: (1) The power to issue subpoenas or subpoenas duces tecum, enforceable upon application to the Superior Court, to compel the attendance of persons at hearings either in person or by means of electronic equipment and the production of books, documents, records and papers; (2) the power to issue written interrogatories and require written answers under oath thereto, enforceable upon application to the Superior Court; (3) the power to hold hearings relating to any allegation of discriminatory practice which it has found reasonable cause to believe has occurred and to issue any appropriate orders including those authorized by § 46a-86; and (4) the power to petition the Superior Court for enforcement of any order issued by it upon a finding that a violation of the local code of prohibited discriminatory practices has occurred, including the power to petition the Superior Court for temporary injunctive relief upon a finding that irreparable harm to the complainant will otherwise occur or for any other relief authorized by sections 46a-89 and 46a-90a.