Chris Guerra, the paparazzo who was killed last week while in pursuit of a Justin Bieber story, has spurred a debate among celebrities and editors alike about the paparazzi industry. When does a photographer go too far for a story? What rules do the paparazzi follow, if any, and how has the industry changed over the years?

HuffPost Celeb and HuffPost Live checked in with photographer Brad Elterman, who snapped celebrities like Bob Dylan and David Bowie in the '70s and '80s, and photo agency Bauer-Griffin co-founder Frank Griffin.

On the changing nature of celebrity photography, Elterman said the game now just isn't what it used to be:

"The photographers back then would gather in a restaurant called Chasen's on a Sunday night. This was a pack of paparazzos, there was five or six of them. And Dean Martin would come in, Frank Sinatra would be there, Sammy Davis and so on. And the photographers were all greeted by the celebrities, Frank Sinatra would say 'Hi Bob, hi Bill, how's it going?' They took the pictures, they posed for the pictures, and nobody had the audacity back then to get in the car and follow them, to see where they're going, what's happening next."

Meanwhile, Griffin shared the advice he gives to the photographers he employs at Bauer-Griffin, a popular agency that sells "exclusive photos of the hottest stars in Hollywood" and the "latest paparazzi photos." Here's what he says governs them on the road:

"When the photographer becomes a part of the story, it's no longer a story. That's number one. I don't condone in any way, shape or form breaking the law or crossing the line -- unless it's really worth it. Sometimes if you have to run a red light because there's $1 million at the end of it, which never is the case, then fine. But it never happens. I don't see why I should support any photographer of any journalist who has to do something that endangers himself or others in order to get that picture."

Finally, on the topic of Guerra, Griffin says that his profession alone didn't contribute to his death.

"The point I was trying to make was that however young men die, whether they step on a landline trying to take the picture or whether they're ordered by the police to cross the road, and that's how they died. There are a lot of reasons: the Ferrari wasn't issued a citation, therefore the police didn't have to report, the woman could have been driving too fast. There's a lot of reasons you can look at why [Guerra] was killed. He wasn't killed because he was a paparazzo."

What do you think, readers? Watch the clip above and click through to HuffPost Live to watch the full segment, then sound off in comments below.

Also on HuffPost:

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  • Princess Diana

    The Princess of Wales tragically died on Aug. 31, 1997, after a lifetime of evading photographers in her native England. While her death was later blamed on her chauffeur's intoxication, her legacy as a harassed celebrity lives on.

  • Kate Middleton

    Topless shots of Kate Middleton hit French tabloid <em>Closer,</em> spurring a media debate about privacy and ethical use of photographs taken in a private setting. (That didn't stop the some <a href="">7 million British people</a> who have peeped the pics, according to the <em>Mirror</em>.) The <a href="">Royal Family later sued the publication</a> on the basis of privacy violation.

  • Lindsay Lohan

    The former teen star has had a series of vehicular accidents, but none more perfectly exemplified the cat-and-mouse chase between her and the paps when she reportedly instructed her assistant to hit a paparazzo with her car in 2010. The photographer, Grigor Balyan, <a href="">later sued the actress</a>; Lohan insisted he obstructed her car.

  • Britney Spears

    Spears' meltdown in 2008 came to a peak when she began <a href="">"happily dating" paparazzo Adnan Ghalib </a>-- who then reportedly fed the star's personal information back to his photo agency, Finalpixx.

  • Heather Locklear

    A curveball in the <a href="">Heather Locklear 2008 DUI case </a>came when it was revealed that the person who called the police to report her erratic behavior was actually a former editor for<em> Us Weekly</em>, who happened to be tailing the actress. <a href="">And then reportedly called the paparazzi.</a>

  • Amanda Bynes

    Amanda Bynes' downward spiral resulted in her giving the paparazzi a bit more than they asked for last week, when she attacked one fellow's video camera. On the incident, <a href="">the paparazzo, Vladimir Labissiere,</a> said, "It was like getting scratched by a cat at this point and I didn't want to have her become aggressive, nor was I being aggressive towards her. … At the end of the day I got my shot and I got scratched up and I hope she gets whatever she needs for her life."

  • Alec Baldwin

    Alec Baldwin's contempt for the tabloid industry, which he rants about frequently on his Twitter page, came to a head when he punched a <em>Daily News</em> photographer. The paparazzo had been waiting for the "30 Rock" star outside of the building where he was presumably obtaining his marriage license, together with wife Hilaria Thomas. <a href="">Said photographer Goran Veljic</a>: "He was like crazy, you know? There was an eruption of mad. ... You're going to get a marriage license, you should be happy. What happened with this guy?"