A year after Russia's invasion of Ukraine, Joshua asks Attorney General Victoria Prentis MP and Professor Philippe Sands KC how the law can help to deliver justice for Ukraine. Could Russia's leaders be tried for the crime of aggression?

What can be done about the form of potentially abusive litigation known as a SLAPP?

Plus, we meet the Ukrainian lawyers brining their skills to the UK.

Presenter: Joshua RozenbergProducer: Diane RichardsonEditor: Simon WattsProduction Co-ordinators: Maria Ogundele and Sabine SchereckSound Engineer: James Beard