Polygamy Family Gets Really Good Lawyer

Kody Brown and wives have a powerful new legal force behind them -- TMZ has learned ... constitutional law guru Jonathan Turley is now representing the "Sister Wives" family in the polygamy investigation, and he's willing to fight it all the way.

Turley -- a professor at The George Washington University Law School -- tells TMZ he is ready, willing and able to sit down with the Utah County Attorney and make a case why his clients should not be prosecuted.

Turley says absent some proof that the family is engaged in child abuse or other crimes, Utah prosecutors almost never prosecute for polygamy. Turley is quick to note there is absolutely no evidence of child abuse or other crimes in the Brown family.

Turley points out ... although Utah prosecutors have a lot of discretion in deciding when to prosecute someone, people can't be hauled into the criminal justice system simply because they've gone on TV and become high profile. In legalese, it's called "selective prosecution" ... and it's illegal.

Turley says his goal is to convince prosecutors to leave the Brown family alone. But he says if his clients are prosecuted, he'll fight it hard. Turley would not say outright that he'll make this a test case and push it all the way to the U.S. Supreme Court, but he made it clear ... he will do everything it takes to clear his clients if they're prosecuted.

Judgment Day in 'Sister Wives' Polygamy Case

The fate of the polygamist family featured in the TLC show "Sister Wives" is now in the hands of county prosecutors ... TMZ has learned.

The Utah County Attorney has confirmed ... the Lehi Police Department has completed their felony bigamy investigation into Kody Brown and his gigantic family -- and the case has been turned over to the Utah County Attorney ... who will ultimately decide whether or not to charge the family with a crime.

In Utah, bigamy can get you 5 years in prison ... though it's rarely prosecuted.

Kody Brown -- who has 3 wives, a fiancée and 13 children -- claims he was aware of the risk he was taking when he decided to put his family on the TLC reality show ... but insists it was a "risk worth taking."

'Sister Wives' Polygamist Husband -- 4 Dates in 2 Days

Kody Brown -- the head of the polygamist family on "Sister Wives" -- had a busy 48 hours ... going out on a date with each one of his 3 wives ... and the new fiancee ... while finding enough time to clean up after his 13 kids.

It started on Saturday, when Kody took wife #3, Christine, on an ice cream date.

The next day, Kody grabbed his motorcycle and went for a ride with wife #1, Meri ... before squeezing in some quality time with wife #2 Janelle (the one in the purple).

The new woman in Kody's life -- Robyn -- also got some face time with her man this weekend .... during a his-and-hers grocery store run in which the couple picked up an 8 pack of paper towels ... which will probably last about 10 minutes.

FYI -- authorities in Lehi, Utah have announced they launched a polygamy investigation into the family after seeing "Sister Wives" .... but the Browns claim the show is "worth the risk.".

Polygamous Family: TV Show is Worth the Risk

The polygamous family featured on the TLC reality show "Sister Wives" is speaking out after learning they've become the target of a felony bigamy investigation in Utah ... claiming the show is a "risk worth taking."

TMZ just received a statement from the Brown family -- saying, "We are disappointed in the announcement of an investigation, but when we decided to do this show, we knew there would be risks."

The family continues, "But for the sake of our family, and most importantly, our kids, we felt it was a risk worth taking."

Yesterday, the Lehi Police Department in Utah announced that the family is being investigated for felony bigamy ... and plans to turn over all evidence to the Utah County Attorney's Office for review and possible prosecution.

The show features a 42-year-old man named Kody Brown -- who has 3 wives, a prospective 4th wife and 13 children.

TMZ Live: Gibson, Lohan, and Paul Wall

We took your questions on everything -- including Mel Gibson's possible domestic violence defense, rapper Paul Wall beating a fan with a microphone, and TLC's "Sister Wives" being investigated for felony bigamy.

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Plus: Lindsay Lohan checks in to rehab.