(a) In any action involving any criminal nuisance, evidence of the general reputation of the place or an admission or finding of guilty of any person under the criminal laws at any such place is admissible for the purpose of proving the existence of said criminal nuisance and is prima facie evidence of such criminal nuisance and of knowledge of and of acquiescence and participation therein on the part of the person charged with maintaining said criminal nuisance.

(b) In any action brought pursuant to this chapter, any evidence of any prior efforts or lack of efforts by the defendant to abate the criminal nuisance shall be admissible, and shall be considered by the court in its decision as to what, if any, remedies or penalties shall be imposed.

(c) Where a criminal prosecution or juvenile delinquency proceeding results in a criminal conviction or adjudication of delinquency, such conviction or adjudication shall create a rebuttable presumption that the criminal nuisance occurred. Any evidence or testimony admitted in the criminal or juvenile proceedings, including transcripts or a court reporter’s notes of the transcripts of the adult or juvenile criminal proceedings, whether or not they have been transcribed, may be admitted in the civil action brought pursuant to this chapter.

(d) In the event that the evidence or records of a criminal proceeding which did not result in a conviction or adjudication of delinquency have been sealed in accordance with § 10002(l) of Title 29, § 4322(a) of Title 11, and §§ [former] 1001 [now repealed], 1002 and 1063 of this title, the Court, in a civil action brought pursuant to this chapter may, notwithstanding any other provision of this chapter, order such evidence or records to be unsealed if the Court finds that such evidence or records would be relevant to the fair disposition of the civil action.

(e) If proof of the existence of the criminal nuisance depends, in whole or in part, upon the affidavits or testimony of witnesses who are not peace officers, the Court may upon a showing of prior threats of violence or acts of violence by any defendant or any other person, issue orders to protect those witnesses including, but not limited to, the nondisclosure of the name, address or any other information which may identify those witnesses.

(f) A law-enforcement agency may make available to any person or entity seeking to secure compliance with this chapter any police report, or edited portion thereof, or forensic laboratory report, or edited portion thereof, concerning the alleged criminal nuisance on or within the premises involved. A law-enforcement agency may also make any officer or officers available to testify as a fact or expert witness in a civil action brought pursuant to this chapter. The agency shall not disclose such information where, in the agency’s opinion, such disclosure would jeopardize an investigation, prosecution or other proceeding, or where such disclosure would violate any federal or state statute.

72 Del. Laws, c. 484, § 1; 76 Del. Laws, c. 158, § 19; 78 Del. Laws, c. 161, §§ 28-32; 78 Del. Laws, c. 382, § 1.