Illegal To Take a Photo In a Shopping Center?

New submitter Kyrall writes "A man was questioned by security guards and then police after taking a photo of his own child in a UK shopping center. The center apparently has a 'no photography' policy 'to protect the privacy of staff and shoppers and to have a legitimate opportunity to challenge suspicious behavior.' He was told by a security guard that taking a photo was illegal. He also said that a police officer claimed, 'he was within in his rights to confiscate the mobile phone on which the photos were taken.'"