My brother in law is being charged with a felony. The testimony of one of the victims, my sister believed, amounted to Perjury. The Victim faked injuries. The victim testified in Prelim she could not walk or drive a car since the incident. The next day without her husband's knowledge, my sister went to the witness' house and video taped the alleged victim walking on the street and driving herself to a drug store and a bank, proving the victim's testimony the day before was perjury. Can this evidence be used to defend her husband? She video taped from the street. She did not trespass on the witness' property. She believes she is covered by "Inevitable Discovery" in that the witness would have been likely discovered in their lie eventually ie- Church, Social Clubs, etc.