Holders of an Oxford Single Sign On are advised to check in the Commentary section of LexisLibrary, in Westlaw's Book collection to see if there are relevant titles there. The holdings in these databases can be hard to find in normal SOLO searches.
Subject searches in SOLO:
Tax planning -- Great Britain
Tax evasion -- Great Britain
Investments -- Taxation -- Law and legislation
Investments, Foreign -- Taxation -- Law and legislation
Moving towards reform & improvement