Russell Brand's Secret Weapon -- Katy Perry's Skirt 
 
 isn't making it up ... law enforcement sources tell TMZtold LAX cops immediately after he attacked paparazzi that he did it because a photog was trying to shoot up his fiancée's skirt.As we first reported, Brand and Perry were going through Delta security when he allegedly attacked photogs . He was arrested for misdemeanor battery.In addition to telling cops about the upskirt shot, we're told Brand and his lawyer raised the issue at LAPD's Pacific Division, where Brand was booked.Katy herself tweeted, "If you cross the line & try an put a lens up my dress, my fiancé will do his job & protect me."Fun fact ... It's not a legal defense to a battery that someone tried to shoot up your girlfriend's dress. But prosecutors know any jury would be extremely sympathetic to a celeb under these circumstances and venomous toward the paparazzi. ||||| Russell Brand Arrested 
 
 Comedian hit photographers while trying to protect Katy Perry... 
 
 Russell Brand was arrested and questioned by Los Angeles police after allegedly attacking several photographers. 
 
 The comedian was making his way through LAX airport on September 17 when the incident took place. Reports suggest Brand lashed out at paparazzi after they got too close to fiancée Katy Perry, pushing one photographer and striking several others. 
 
 A victim performed a citizen’s arrest on Brand and he was interviewed by airport police before being taken into custody for a misdemeanour charge of simple battery. He was released after posting $20,000 bail. 
 
 After the incident Katy tweeted: "If you cross the line & try and put a lens up my dress, my fiancé will do his job & protect me." Katy also added two hash tags: #standbyourman and #don’t****withtheBrands. Russell has not commented on the incident. 
 
 The former VMAs host had travelled to the west coast of America to spend time with Katy on their first anniversary as a couple; the altercation meant they missed their flight to Las Vegas. Russell is based in New York for several months while he films the remake of Arthur. 
 

– Russell Brand is free on bail today on charges of simple battery after he allegedly roughed up members of the paparazzi at LAX airport. The reason? He told cops upon his arrest that photographers were trying to shoot up fiancée Katy Perry's skirt, reports TMZ. Katy herself confirms the line of defense, via tweet, of course: "If you cross the line & try and put a lens up my dress, my fiancé will do his job & protect me." MTV has more details.