If I know one of my roommates stole things from my bedroom (there is no verifiable proof, but there is proof: she was the only one in the house at the time, and I had just purchased the clothing, and put it into my closet. Also, I had something of hers from the kitchen [a knife] that she removed from my bedroom. I had left it in there to see if it would go missing, proving she had entered my bedroom), can I tell her I have her on video in my bedroom and ask for my things back? Will there be legal reprecussions for lying?