Justin Bieber Sued -- Allegedly Ordered Photog Attack ... Personally Destroyed Camera

Justin Bieber can jump off a cliff ... but he can't order his bodyguard to attack anyone trying to photograph him doing it ... so a paparazzo alleges in a new lawsuit against the singer.

Aja Oxman claims Bieber was behind a brutal attack against him in which he was lifted in a choke hold and slammed onto the hood of a car. According to the lawsuit -- obtained by TMZ -- Justin "enjoyed the beating."

Bieber was in Kauai last November at Shipwreck Beach and decided to cliff jump. Oxman says he took a photo on a public beach and Bieber sicked his bodyguard on him ... ordering, "Go get his memory card and do whatever you have to do to get that card."

Oxman says that's when the bodyguard opened a can of whoopass, took his camera and memory card. The bodyguard, Dwayne Patterson, was booked for 3rd degree assault and 4th degree criminal property damage.

The suit -- filed by attorney Sark Ohanian -- claims Bieber and his hired muscle destroyed the camera together.

We called Bieber's people. So far, no comment.