David Icke (who believes in reptile conspiracy) is not allowed to enter the Netherlands. ‘Statements are objectionable, but exclusion is counterproductive’, fears law expert from the University of Groningen

“As long as you campaign peacefully, i.e. do not use or incite violence, the mayor and the police have a duty to protect against hostile public,” Roorda says. “We don’t want a reward effect for disrupting someone else’s demonstration. So no matter how controversial, ridiculous or objectionable your opinion is, you can just say it. Action may be taken against a criminal statement, but only afterwards. That has everything to do with the censorship ban.”