Related Clues:
- Christmas cards? Mum has one left
- Protection for old soldier, Irishman retreating
- Miles:millilitres, in which there's one:one correspondence
- Audible testosterone-fuelled letters
- Something shared by identical twins
- Evidence with a twist?
- ID factor, perhaps
- Tiny strands
- Important forensic evidence
- Lab test subject
- Double-helix genetic material
- Forensic investigator's molecule
- Friend leaves Ferdinand evidence for court
- Your basic makeup?
- Cold case solver, maybe