Moscow police had detained Ivan Golunov, an anti-corruption journalist, for alleged drug offences. However, they had to drop charges against him after his arrest caused displays of support from other Russian journalists and cultural figures, 25,000 people expressing their disgust on Facebook, and a threatened protest march. Police involved in the case were removed from duty pending investigations, and President Vladimir Putin will be asked to dismiss more senior personnel. The Kremlin admitted that ‘mistakes had possibly been made’. Forensic tests did not detect Ivan’s fingerprints on the drugs purportedly seized from his home, neither was there any trace of drugs in his urine or on his fingers. Photographs supposedly showing a drug lab at his flat were later deleted after a policeman admitted they were taken at a different location and bore no relation to the journalist. Human rights groups said police in Russia often plant drugs on suspects.