Somewhat surprising that four centuries of shipping litigation in London should not have returned a definitive answer to this question before now.See this useful review of the Supreme Court decision Volcafe Ltd vs. CSAV by the North of England Club: http://www.nepia.com/insights/industry-news/who-has-to-produce-the-evidence-in-a-cargo-claim/#.XAgMSWjCnb0.linkedin
English judgments are also generally available online at www.bailii.org.
Sara Gillingham Aukner 