LAS VEGAS, NV (WAOK)-Whitney Houston’s daughter is the subject of a gambling probe in Las Vegas.  Video posted on TMZ.com show 19-year-old Bobbi Kristina playing the slot machines at the MGM Grand Hotel and Casino Saturday night.   Bobbi Kristina was in Las Vegas over the weekend to attend Sunday’s Billboard Music Awards where she accepted the Millenium Award on her late mother’s behalf.

Nevada law states you have be at least 21 years old to gamble.  Anyone caught gambling while under age could face up to six months in county jail or a one-thousand-dollar fine.  The fine could be even greater for the MGM Grand.  TMZ says the casino and the Nevada Gaming Commission are investigating.