Jubilant crowds greet Imran Khan in Lahore

A jubilant welcome for Imran Khan as he returns to Lahore after his arrest

Also, 160 million TV viewers around the world and voters in over 40 countries - the Eurovision Song Contest, which takes place today, has been called one of the world's biggest exercises in democracy. Its boss tells us why.

Joining Paul Henley to discuss these and other issues are Karen Fricker, theatre critic and a professor of dramatic arts at Brock University in Canada; and Julia Buxton, professor of criminology and a specialist in international drug policy at the University of Manchester.

(Image: Former Pakistan prime minister Imran Khan leaves the Islamabad High Court in Islamabad. Credit: Aamir QURESHI / AFP.)