An Israeli detention guard turned whistleblower who leaked a photograph of a Palestinian prisoner forced to stand in a stress position has told ITV News that the things he saw "made his stomach turn". The guard, who wishes to remain anonymous to protect his identity, said his experiences in the prison would shock "anyone with a conscience." ITV News managed to speak to the prisoner in question, who was recently released and has returned to the southern Gaza strip. • Subscribe to ITV News on YouTube: http://bit.ly/2lOHmNj • Get breaking news and more stories at http://www.itv.com/news Follow ITV News on Facebook: https://www.facebook.com/itvnews/ Follow ITV News on Twitter: https://twitter.com/itvnews Follow ITV News on Instagram: https://www.instagram.com/itvnews/