Bear Brook is a serialized, narrated true-crime and investigative journalism podcast produced by New Hampshire Public Radio. Episodes are reported documentary-style rather than in a studio-interview format, with host and reporter Jason Moon narrating developments, playing tape from investigators and officials, and following ongoing case updates in real time rather than a fixed archive of past events. The show is built around two long-running investigations: the identification of the 'Bear Brook' barrel victims, which draws in genetic genealogists, cold-case volunteers, and state police, and the wrongful-conviction case of Jason Carroll, which involves innocence-project attorneys, forensic DNA experts, and newly surfaced evidence. Recurring themes include cold-case forensics, genetic genealogy, false confessions, chain-of-custody problems with old evidence, and the mechanics of how DNA testing and legal appeals actually proceed. The show occasionally airs 'update' episodes that revisit prior seasons as new facts emerge, such as a 2025 episode confirming the final unidentified victim's identity. Its producers have extended the same investigative approach beyond true crime into public-health reporting, cross-promoting the spinoff Safe to Drink, which examines industrial PFOA contamination of a New Hampshire town's water supply. Guests and sources tend to be case participants rather than celebrity commentators: genetic genealogists, forensic scientists, defense attorneys, state officials, and affected residents. Listeners who want procedural detail on how cold cases get solved and wrongful convictions get challenged, rather than dramatized retellings, are the core audience. Production credits (editors, fact-checkers, legal review) are read out on newer episodes, reflecting an NPR-style newsroom process behind the reporting.