Requires safeguards for anonymity and confidentiality with respect to communications presented through phone lines, electronic communication systems, or websites dedicated to accepting anonymous tips for use by law enforcement in criminal investigations.

S 4234 requires that phone lines, websites, or electronic systems used to accept anonymous tips for criminal investigations must encrypt communications to hide the tipster's identity, communication details (like phone numbers), and exact location (only the municipality is shared with law enforcement). It prohibits law enforcement and system operators from requesting identifying information and ensures these tips and related records are not public records or admissible in court, except for cases involving false reports to police. Violating these protections - such as disclosing a tipster's identity - is a fourth-degree crime punishable by up to 18 months in jail, a $10,000 fine, or both, and government entities may face civil liability of up to $25,000 plus legal fees if an employee breaches the law.