When Does Public Nakedness Become a Crime?

After a man stood nude on a Trafalgar Square pedestal, the BBC asks when disrobing in public becomes a crime.

Andrew Welch of British Naturism says the issue all comes down to a person's intention.

"For obvious reasons we've had to look at this issue with our lawyers," he says.

"Causing upset is definitely not what naturism is about, our challenge is a cultural one. The law is fine, we just need to change people's attitude to the naked body."