Milo Rau turned tribunals into theatre. Now his own moral judgement is on trial

The Swiss director has staged court cases against Pussy Riot, mining companies in Congo and Gisèle Pelicot’s abusers. But after his invitation to Palantir founder Peter Thiel caused a row in Vienna, is Rau’s method eating itself? Milo Rau, once the enfant terrible of continental European theatre, is a little less buoyant these days. The Swiss theatre-maker has done something he says he explicitly hates: he has cancelled a guest. “Yes, we hit a wall,” he says. “But at least it made the wall visib