I am trying to come up with a new ending for my story, and I would like to hear if you think my villain or main character would do this. Basically the MC is a cop who wants to find proof on the villain and investigates the villain on his own time, after the villain is found not guilty in court for his past crimes. After monitoring the villain for a few weeks and getting nowhere, the MC decides to break into his house and finds a safe. He breaks into the safe, and finds evidence that can be used, in other crimes, so the double jeopardy law does not apply because the evidence pertains to other crimes. After the MC breaks into the safe though, a silent alarm is triggered that calls the villains sell phone. The villain rushes back to his house and intercepts the MC as he is examining the evidence in the safe. A shootout starts, and people who hear the shots from afar, call the cops. The MC ends up not escaping with the evidence and leaving the evidence behind as he escapes. The villain knows that the cops have been called likely, so he puts the evidence back in the safe and locks it before they get there. He reports a break in, saying it was an armed man and acting aloof, like he doesn't know anything more. Since the MC is guilty of breaking and entering, the evidence cannot be used of course, and the cops have no legal grounds to search the man's safe. The MC's superiors find out about it and fire him for what he did. The villain cannot go back to the residence to get his stuff out of the safe, without being seen now, though cause the place is now a crime scene and can very likely be watched. So he has to leave it there, hoping the cops will not get a warrant to search it. Later on in the plot in climax, the MC goes back to the residence, and busts open the safe again. This alerts the villain again, but this time the MC gets the cops their ahead of time to catch the villain. Now when I did legal research before, evidence cannot be admissible in court, if the cop had to commit breaking and entering to get it there obviously, because then it's tainted. However, if a civilian breaks and enters, they are allowed to use the evidence legally I was told, because civilians don't need warrants, but they can still be charged with breaking and entering of course. Now that the cop is a civilian since he was fired, him breaking into the safe, and getting the cops there, ahead of time, makes the evidence admissible. Plus if the cops get there while the safe is still open, it can be considered as evidence found upon arrival of a the call to the police, now. However, will the readers believe that technicality to work? And would the readers believe that the villain would go back to a safe, a second time, after the residence has been deemed a crime scene, even if it's to protect the evidence and get rid of it, if he has to?