Episode #2.8 - S2-E8
Other mistake: Richard states that all 33 of the prints he recovered from the cash wraps were by the victim, but we see the secretary in flashbacks collect them from the garbage bin with no gloves, which would leave obvious prints that can't be washed away - the presence of prints wouldn't even be all that incriminating per se, since it wouldn't be terribly strange for the personal assistant to momentarily handle some money inside her boss' office.
Continuity mistake: When Aunt Mary is writing on the whiteboard at the hospital, the word "killed" changes style between shots. (00:31:40)
DI Jack Mooney: My grandfather told me a story once, about these two wolves fighting inside all of us. And one of them is anger, envy, self-pity, regret. The other one is love, truth, faith, hope, that sort of thing.
And I asked him "which one of the wolves would win?" And do you know what he said?
"The one you feed." (00:18:15)
Question: When Richard reminisces about England, he talks about going to the pub and having a pint. Yet the whole time he's in Saint Marie, he is never seen to drink alcohol with the rest of the team; only cups of tea. Why?
Answer: Most likely they had only tropical exotic drinks, he wanted an old fashioned English beer.