Victims of modern slavery are not being protected well enough, with many police forces failing to recognise the true scale of human trafficking, says the police watchdog for England and Wales. Sky News has obtained exclusive figures showing that less than 1 in 50 cases the police get involved with results in a successful conviction. This special report comes from our correspondent Adele Robinson. SUBSCRIBE to our YouTube channel for more videos: http://www.youtube.com/skynews Follow us on Twitter: https://twitter.com/skynews and https://twitter.com/skynewsbreak Like us on Facebook: https://www.facebook.com/skynews For more content go to http://news.sky.com and download our apps: iPad https://itunes.apple.com/gb/app/Sky-News-for-iPad/id422583124 iPhone https://itunes.apple.com/gb/app/sky-news/id316391924?mt=8 Android https://play.google.com/store/apps/details?id=com.bskyb.skynews.android&hl=en_GB