Jolyon Jenkins reports on one man's attempt to create a new nation - a libertarian utopia - in what he says is unclaimed land between Serbia and Croatia. He has money and supporters, and half a million people have signed up for citizenship.

But it's not been easy for Vít Jedlicka, Czech politician and president of "Liberland". Since he planted his flag on these marshy 7 square kilometres on the banks of the Danube in 2015, his supporters have been arrested, fined and jailed. He himself has been barred from entering Croatia. Neither Croatia nor Serbia seem to want to claim the territory, but that doesn't mean they want a zero tax libertarian enclave with no gun laws sitting between them.

Jedlicka is not deterred though. He keeps up a busy schedule of international conferences, has appointed a full cabinet, and is busy opening embassies and bestowing proto-ambassadorships around the world.

Jolyon Jenkins joins him as he and his foreign minister try to get back into Croatia and visit the territory he would eventually like to call home.

Producer: Jolyon Jenkins.

Jolyon Jenkins reports on the world of electronic voice phenomena (EVP) - the community of people who believe that the dead can speak to us through radio transmissions and white noise. The technique was introduced to the English-speaking world by a mysterious Latvian, Dr Konstantin Raudive, who travelled to Britain in 1969 with recordings of Hitler, Churchill and Stalin speaking from beyond the grave. The method is now a mainstay of paranormal investigators. Jolyon unearths tapes from 40 years ago made at a key séance held by Dr Raudive in Gerrards Cross. Raudive eventually came to believe that a budgerigar called Putzi was passing on messages from a dead 14-year-old girl. Jolyon speaks to current EVP practitioners, and to a man who believes that his recordings of animal noises also contain messages.

The claims are improbable, but they tell us interesting things about human perception: about our ability to construct meaning from meaningless sound, and about how our brains naturally fill in the gaps where information is incomplete. Optical illusions are well known, but we are equally prone to being fooled by audio illusions. Sound artist Joe Banks suggests that, while EVP researchers may be carrying out parapsychology experiments, they are unwittingly doing conventional psychology experiments.