Trumbull, Conn., Mun. Code ch. 10 § 10-12

(a) The enforcement of this chapter shall be made by the Building Commission acting through its designated agent according to the Charter.
(b) Whenever the enforcing officer determines that conditions exist which cause any dwelling, dwelling unit, rooming unit or premises to fail to meet the minimum standards provided for in this chapter or regulations pursuant hereto, he may issue a notice setting forth the alleged failure or failures and requiring that such failures be corrected. The notice shall:
(1) Be put in writing;
(2) Set forth the alleged violation or violations of this chapter or of the rules and regulations pursuant hereto and describe the dwelling, dwelling unit, rooming unit or premises where the violation is alleged to exist or to have been committed;
(3) Provide a reasonable time, not to exceed sixty (60) days, for the correction of any violation alleged;
(4) Be served upon the owner, occupant or person in charge of the dwelling, dwelling unit, rooming unit or premises by personal service as provided for in the rules of the courts of this state; or by registered or certified mail, return receipt requested, deliver to addressee only. If one (1) or more persons to whom such notice is addressed cannot be found after diligent effort to do so, service may be made upon such person or persons by posting a notice in a conspicuous place in or about the dwelling, dwelling unit, rooming unit or premises described in the notice.
(c) After the passage of the period of time allowed for the correction of any violation alleged, the enforcing officer shall reinspect the dwelling, dwelling unit, rooming unit or premises described in the notice following the procedure detailed in subsection (b) above. Before such reinspection is undertaken, the owner, operator or person in charge of the dwelling, dwelling unit, rooming unit or premises to be inspected shall be informed that any evidence of a violation of any provision of this chapter or any regulation pursuant hereto may form the basis of a criminal prosecution. The consent of the owner, operator or person in charge to such reinspection shall then be requested.
(d) If such consent is refused, and where the enforcing officer has reasonable grounds to believe that a violation of any provision of this chapter or any regulation pursuant hereto has occurred or is occurring, he shall apply for a search warrant describing the dwelling, dwelling unit, rooming unit or premises in question. Upon procurement of a duly issued search warrant the enforcing officer is hereby authorized to enter, inspect, examine and survey the described dwelling, dwelling unit, rooming unit or premises for the purpose of determining whether there has been compliance with the notice of violation.