Back in May, the U.K.’s corporate crime investigator, the Serious Fraud Office (SFO), won the right to gain access to a raft of documents that a Kazakh mining company at the centre of a bribery and corruption investigation claimed were protected by professional privilege. At the time, the decision was hailed as being both “landmark” and “profound” with potentially wide-reaching ramifications. Now that company has won the right to appeal.

Neil Hodge is a freelance business journalist and photographer based in Nottingham, United Kingdom. He writes on insurance and risk management, corporate governance, internal audit, compliance, and legal...