radiocaster
Doctor of Teleocity
Plus the accused might get a mental picture of what and where and when he was supposed to have committed the act, even if it didn't happen.The digging into the subconscious is fraught with errors - for one thing people fantasize about all sorts of things - and telling real from fake would be impossible - and the thoughts of someone who had an interest in whatever crime was committed would also convolute the results - then there is the whole minority report concept that further dilutes truth and reality.