A woman who was caught trying to stash her pills in a hotel toilet has been charged with not only possession of drugs, but also tampering with evidence.The woman, Kristi Nicole Thompson, 25, has been bound to the grand jury on charges of tampering with evidence, possession of meth for resale, and possession of drug paraphernalia. She has also been charged with violating her probation. The probation case will be heard next week.Thompson was busted at Best Value Inn after a hotel clerk called police about suspicious activity in the room she had rented.