Controversies
Controversies tied to this brand in public sources. A listing is not a finding of fault.
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1999
Animal-rights intimidation campaign
Some activists associated with the anti-HLS campaign were accused or convicted of threats, assaults, blackmail, hoax threats and other intimidation. The incidents included an attack on managing director Brian Cass and threats against HLS personnel and business associates.
1998
United States undercover investigation
A PETA investigator recorded material inside the New Jersey laboratories and alleged serious mistreatment of research animals. HLS president Alan Staple disputed the interpretation of footage involving a monkey, stating that the animal was sedated.
1997
British undercover investigation into laboratory-dog treatment
Secretly recorded footage broadcast on television showed technicians abusing beagles and other alleged breaches of animal-protection requirements. The employees were dismissed, two were convicted of cruelty, and HLS introduced management and training changes.