Cases & Investigations
Facility investigations, enforcement actions, and the campaigns that drove them — from Ridglan Farms in Wisconsin to Envigo in Virginia to MBR Acres in the UK.
Facility Profiles & Case Studies
Ridglan Farms
The nation's second-largest research dog breeder — Blue Mounds, Wisconsin. Operating since the 1960s. 311 state violations, lead vet's license suspended, and a settlement requiring license surrender by July 2026. The facility that triggered a special prosecutor and a movement.
Read article →The Ridglan Investigation
The Ridglan investigation spans from Wayne Hsiung's 2017 undercover footage through six years of prosecutorial inaction, a court-ordered special prosecutor in January 2025, 311 DATCP violations, a settlement requiring license surrender, and a March 2026 rescue operation. The case exposed systemic failures in both USDA inspection and local prosecution.
Read article →Envigo & Inotiv
The Cumberland, Virginia beagle breeding facility that produced the largest Animal Welfare Act enforcement action in history — $35 million in penalties, a guilty plea, 4,000 beagles rescued, and a facility that traced its roots back to Hazleton Laboratories in the 1960s.
Read article →The Envigo Case
The Envigo enforcement case traces from a 2021 PETA undercover investigation through 70+ USDA violations, a DOJ civil complaint, the rescue of 4,000 beagles coordinated by HSUS, bipartisan Congressional involvement, a guilty plea, and a $35 million fine — the largest Animal Welfare Act penalty ever imposed.
Read article →MBR Acres
MBR Acres, based in Cambridgeshire, breeds over 2,000 beagles per year for UK and European laboratories. Asserted to be a subsidiary of Marshall BioResources, the facility has been the target of Camp Beagle — the longest-lasting animal rights protest camp in the UK — since June 2021. Puppies are shipped at approximately 16 weeks of age.
Read article →The Ridglan Investigation
A 9-chapter investigative narrative — from the 2017 undercover footage to the March 2026 rescue.
Coming Soon
Detailed case studies on the VA beagle experiments, the Charles River Michigan investigation, and the Camp Beagle campaign against MBR Acres. Deep research prompts for these are available in the project's research guide.