Expertise expired? Lawyers are often very reluctant to use new experts but a recent case demonstrates the problems that can occur if someone’s expertise has reached its expiry date. In MJS v RPS Consulting, a case about the design and construction of a container park, the expert evidence was central to the issues and the value of the claim. Unsurprisingly perhaps both engineering experts were cross-examined extensively and were criticised heavily by counsel for both sides in their closing submissions.