We used a system of tags associated to each memory and the scenario checks tags to see if there's inconsitencies or not. For the brother we forgot to put the Family tag on the present, which is required to not corrupt. We knew about that but didn't properly managed a bug list so it was forgotten at least three times... The criminal is a bit different since you're forced to get its memory, my friend wanted him to be immune to corruption. We would have managed that differently if it wasn't a game jam but at least that doesn't force the player into an error.
We're happy you enjoyed it !