Misplaced fears about terror, privacy and child protection are preventing amateur photographers from enjoying their hobby, say campaigners.
Phil Smith thought ex-EastEnder Letitia Dean turning on the Christmas lights in Ipswich would make a good snap for his collection.
The 49-year-old started by firing off a few shots of the warm-up act on stage. But before the main attraction showed up, Mr Smith was challenged by a police officer who asked if he had a licence for the camera.
After explaining he didn't need one, he was taken down a side-street for a formal "stop and search", then asked to delete the photos and ordered not take any more. So he slunk home with his camera.
"People were still taking photos with mobile phones and pocket cameras, so maybe it was because mine looked like a professional camera with a flash on top," he says.
"I wasn't very pleased because I was taken through the crowd and through the barriers at the front and people were probably thinking 'I wonder what he was doing.'
"To be pulled out of a crowd is very daunting and I wasn't aware of my rights.
"It's a sad state of affairs today if an amateur photographer can't stand in the street taking photographs."
Austin Mitchell MP has tabled a motion in the Commons that has drawn on cross-party support from 150 other MPs, calling on the Home Office and the police to educate officers about photographers' rights.
Mr Mitchell, himself a keen photographer, was challenged twice, once by a lock-keeper while photographing a barge on the Leeds to Liverpool canal and once on the beach at Cleethorpes.
"There's a general alarm about terrorism and about paedophiles, two heady cocktails, and police and PCSOs [police community support officers] and wardens and authorities generally seem to be worried about this."
Photographers have every right to take photos in a public place, he says, and it's crazy for officials to challenge them when there are so many security cameras around and so many people now have cameras on phones. But it's usually inexperienced officers responsible.
"If a decision is made to crack down on photographers, it should be made at the top. It's a general officiousness and a desire to interfere with people going about their legitimate business."
Child protection has been an issue for years, says Stewart Gibson of the Bureau of Freelance Photographers, but what's happened recently is a rather odd interpretation of privacy and heightened fears about terrorism.
"They [police, park wardens, security guards] seem to think you can't take pictures of people in public places. It's reached a point where everyone in the photographic world has become so concerned we're mounting campaigns and trying to publicise this."
"There's a great deal of paranoia around but the police are on alert for anything that vaguely resembles terrorism. It's difficult because the more professional a photographer, paradoxically, the more likely they are to be stopped or questioned.
P.S. In the case of Phil Smith, an official complaint about the Christmas lights incident helped sort matters out. Not only did he receive a written apology from Suffolk Police, but also a visit from an inspector, who explained that the officer, a special constable, had acted wrongly.
(Edited from the BBC)
LissaT
Pro 
My nephew - then about 17 - was taking photographs of the facade of a stately home when a small child triked into the frame and he was set on by the mother calling him a filthy paedophile.