New Delhi Pulling up the Shivraj Singh Chouhan-led Madhya Pradesh government over the alleged illegal clinical drug trials in the country, the Supreme Court on Monday expressed concern over the issue, saying it was ‘unfortunate’ that humans were being treated as ‘guinea pigs’.

Coming down heavily on the state government, a Bench headed by Justice R M Lodha noted that inadequate measures were taken to curb the problem. It pulled up the Centre and the Madhya Pradesh government for not filing their response on PILs alleging large-scale illegal drug trials in the state and other parts of the country.