Pensieve memories cannot be tampered with, but the Wizengamot would find some way to claim that they were fabricated.
Would they go against Harry, though, especially in the aftermath? Assuming he did indeed have any Pensieve memories in the case of Snape surviving, since it's probably more likely that Snape would simply have told him verbally in that case.
Would they go against Harry, though, especially in the aftermath? Assuming he did indeed have any Pensieve memories in the case of Snape surviving, since it's probably more likely that Snape would simply have told him verbally in that case.