Neuralink ended its partnership with UC Davis in September 2020, but the Physicians Committee claims that it continues to employ the same neurosurgeon and many of the staff responsible for the experiments that poisoned, maimed, and ultimately killed at least 12 macaque monkeys.

Last month, the company announced that it is preparing to start human trials after receiving a green light from the US Food and Drug Administration. Since ending its partnership with Davis, Neuralink has brought its testing in-house—far from the prying eyes of journalists, animal welfare groups, and the jurisdiction whose records law first shed light on its practices.

UC Davis veterinary records cited by the Physicians Committee—which WIRED also obtained through a subsequent California public records request—chronicle a battery of complications that developed following procedures involving electrodes being surgically implanted into monkeys’ brains.