In Hawaii, any wire, oral or electronic communication (including cellular phone calls) can lawfully be recorded by a person who is a party to the communication, or when one of the parties has consented to the recording, so long as no criminal or tortious purpose exists. Haw. Rev. Stat. § 803-42. Divulging any private message or photographic image by telephone, telegraph, letter, electronic transmission, without the consent of either the sender or the receiver, is a misdemeanor if the accused knows that the message was unlawfully intercepted. Unlawful interceptions or disclosures of private communications are punishable as felonies. Haw. Rev. Stat. § 803-42.
The one-party consent rule does not apply, however, to the installation of a recording device in a “private place” that will amplify or broadcast conversations outside that private place. All parties who have a reasonable expectation of privacy in that place must consent to the installation of a recording device. Haw. Rev. Stat. § 711-1111.
Civil penalties for unlawful interception or disclosure include the greater of actual damages or any profits made by the violator, $100 for each day of violation, or $10,000, along with punitive damages, attorney fees and litigation costs. Haw. Rev. Stat. § 803-48.