MIAMI -- Part I: Porn Bus Shoots Sex On The Move

After finding out that a mobile porn studio is being used on the streets of South Florida, Local 10 wanted to find out if the business is legal.

SLIDESHOW Take A Peek Inside The Porn Bus

Matt Lorch took Local 10's undercover videotape to the Miami police.

Police spokesperson Delrish Moss also watched video trailers from Ox Ideas' Web sites showing two men in a mini-bus offering girls money to get inside. Once in the van, the girls were convinced to flash their breasts, and the activities progress to hardcore pornography before the girls are dumped out of the van.

But Local 10 learned in an undercover investigation, the women are actually paid performers, and the incidents are all set up in advance. Ox Ideas producer Olivier Caudron told a Local 10 producer that the women are paid $700.

Moss said, "This (pornography) is one of those hard crimes to deal with."

Local 10's producer was told that all the participants must sign contracts and are tested for diseases. That's why Moss said prostitution charges don't apply.

"What you got here is a case of lawful pornography -- but a bad choice of location," Moss said.

The participants have sex while the van rolls down public streets. It would be an indecent exposure misdemeanor if seen by adults, and a felony if spotted by a child.

But so far, Miami police say they have not received a single complaint.

"As long as no one sees them -- as long as no one complains -- as long as the girls aren't abused in any way that they're not willing to be -- you don't have a crime," Moss said.

The windows of the van are tinted, and no one can see inside.

"There's no indecent exposure," Moss said. "No crime has been committed."

So even if many may not approve of pornography and its portrayal of women, police say from the footage on the Web sites, it appears well within the law.

The company claims all participants are at least 18 years old. But police will admit there's very little policing and few people are checking.

A lawyer representing Ox Ideas faxed a letter to Local 10 stating that theirs is a legal business protected by the First Amendment.