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100% yes. The entire series has links and nods to previous stores and characters.

Which would be the exact reason why they’ve included it.

Desk tapping with pen = 4 dots = ‘H’ in morse code.

Yeah, have a look at the Spanish officers eyes / eyebrows. Definitely have a JN feel to them plus the accent was terrible.

Never looked so forward to watching the final episode of something.

Few thoughts from me:
- The Spanish copper looked very much like James Nesbitt and I can’t believe the beeb would have him in a...