Lotus Notes/Domino Forensics
At one time this was the most commonly used email and free-form database system within the commercial world. I have been programming and administering the Lotus Notes system since 1991 and I am qualified as a Principal Certified Lotus Professional (PCLP) both as a developer and as an administrator. Historical emails are often archived from this system and detailed knowledge is required to recover the evidence. I used this expertise both in Sir Martin Sorrell -v- FullSix SPA & Others and in R -v- Cryne and others.