Tanning Mom -- I'll Never Be Convicted ... 'Cause My Kid's A Ginger! [Video]

Tanning Mom just gave the craziest criminal defense of all time ... telling TMZ, those child endangerment charges will never stick ... all because her daughter is a red-head.

Patricia Krentcil was outside a pharmacy in New York Saturday (looking a little less tan) when our camera guy got her rambling about an array of subjects, including her ongoing criminal case.

The video is pretty hilarious ... the 44-year-old explains why she'll never be convicted by those "idiots"... for allegedly letting her 6-year-old daughter use an indoor tanning bed.