Police are at the SNP headquarters today following the arrest of Nicola Sturgeon's husband Peter Murrell. First Minister of Scotland, Humza Yousaf, said his party have “fully cooperated with the investigation” which has led to the arrest of the former SNP chief executive. Report by Browna. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn