It was 1968, and Frank Rochelle was 20 years old and fresh out of Army boot camp when he saw notices posted around his base in Virginia asking for volunteers to test uniforms and equipment. That might be a good break after the harsh weeks of boot camp, he thought, and signed up. Instead of equipment testing, though, the Onslow county, North Carolina, native found himself in a bizarre, CIA-funded drug testing and mind-control programme, according to a lawsuit that he and five other veterans and Vietnam Veterans of America filed last week. The suit was filed in federal court in San Francisco against the US department of defence and the CIA. The plaintiffs seek to force the government to contact all the subjects of the experiments and give them proper healthcare. In 2003 the US department of veterans affairs released a pamphlet that said nearly 7,000 soldiers had been involved and more than 250 chemicals used on them, including hallucinogens such as LSD and PCP as well as biological and chemical agents. Lasting from 1950 to 1975, the experiments took place at Edgewood Arsenal in Maryland. According to the lawsuit, some of the volunteers were even implanted with electrical devices in an effort to control their behaviour. Rochelle, 60, [said] there were about two dozen volunteers when he was taken to Edgewood. Once there, they were asked to volunteer a second time, for drug testing. They were told that the experiments were harmless.