Teen Mom's Amber Portwood Is In Jail

TMZ has obtained the mug shot of "Teen Mom" Amber Portwood -- taken moments after she was arrested in Indiana for allegedly beating the crap out of her baby daddy ... in front of their daughter.

According to Amber's booking sheet -- the 20-year-old measured in at 5'3", 138 lbs.

Amber was charged with two felony counts of domestic battery, one felony count of neglect of a dependent, and one misdemeanor count of domestic battery.

As we previously reported, Amber allegedly attacked Gary Shirley three separate times between August 2009 and July 2010. Some of the violence was captured on video.

We're told Amber faces three years behind bars and up to $10,000 in fines if convicted on all charges.

Credit: TMZ

Alexis Neiers Arrested -- Black Tar Heroin Found

Alexis Neiers -- star of the E! reality show "Pretty Wild" -- was just arrested for a probation violation ... and law enforcement sources tell TMZ, she was in possession of black tar heroin when they found her.

We're told Neiers never checked in for probation after being released from jail in July ... so this morning, cops decided to pay her a visit at her L.A. home.

Law enforcement sources tell us cops searched the place, discovered black tar heroin ... and immediately placed Neiers under arrest.

Neiers is still on probation for burglarizing Orlando Bloom's L.A. home last year -- so this new arrest could lead to some serious time behind bars.

Calls to Neiers' reps have not been returned.

Credit: TMZ