Ah, OK.
Well, yeah, I meant right now. There are no cops around, and exploding jewels and magical swords don't really leave much evidence....
Plus, I would imagine Rin has about 30 years of experience in clearing up crime scenes and the like to ensure that the police keep out of magical business. Plus, she has several witnesses who I would imagine would lie for her if necessary (Kiyoshi would to save his family). So, actually finding any real evidence of anything is going to be quite challenging.