Watergate
When an evidence token reaches space 5 on my side, is it pinned right away or at the end of the round?
The rulebook says to gain the token immediately and follow the pinning rules; players confirm they apply to evidence like the other tokens.
Right away. Reaching space 5 gains the token at once, you pin it to the evidence board immediately by the usual pinning rules, and a momentum symbol on it takes effect then too.