This is rare. . .

The trial has started of two policemen accused of murdering two demonstrators in Kisumu in January. It's rare that the police go on trial for human rights offences – and any observer of the Kenyan scene knows how brutal and undisciplined Kenya's police can be (there are many good police officers, but the bad ones are extraordinarily brazen) – so this trial, of a shooting that was witnessed by the world through  KTN footage (relayed by the BBC) is very welcome.