Powell examined the negatives and found no evidence that they were tampered with or faked. Code integrity verifies that system binaries have not been tampered with by malicious code. Searchlight signals have the disadvantage of having moving parts which may be deliberately tampered with. There was also evidence that safe burglary jury had been tampered with. Court also said that CBI tampered evidences and tutored witnesses. Opposition leader Raila Odinga, alleged that the results had been tampered with by hackers. They wanted to implement a system where document timestamps could not be tampered with. Fusionists also tampered with ballot boxes on election day. Other viewers argued that the video had been tampered with before being made public. Kantor also reported that Ruby might have tampered with evidence while at Parkland. It was later discovered the results had been tampered with. Dexter is released, however, thanks to the evidence that Debra tampered with. They haven't tampered with the song too much. In October 2008, criminals tampered with European credit card-reading machines before they were installed. But the visuals had been tampered by Abdu.