Smears, bots and bags of cash - we reveal some of the tricks used for fiddling elections around the world. German Chancellor Angela Merkel's security chiefs say Russian intelligence is actively trying to influence next month's German elections. Meanwhile, from the US to the Netherlands, countries are becoming increasingly wary of election interference. So how do you fix someone else’s election? Hear answers from people who've studied it and even been involved.

Presenter: Neal Razzell Producers: Phoebe Keane, Emily Craig Editor: Emma Rippon

(Photo: Voters go to the polls in the contentious presidential election between Hillary Clinton and Donald Trump in Las Vegas, Nevada Credit: Ethan Miller/Getty Images)