Of huge importance to the investigation will be the need to establish a method of compensation that the scientific community can trust. Avoiding a chilling effect is essential - the comulsory purchase should be there to aid the adoption of advancements, not stifle research in the first place.
Close down all tax havens under British jurisdiction. This means reforming tax rules in the Channel Islands, the Isle of Man, the Cayman Islands, the British Virgin Islands, and others.
In parallel, work at an international level to get rid of tax havens outside British jurisdiction, and close international loopholes such as the "Double Irish Dutch Sandwich".
[^1]: Stop Secret Contracts
The OpenPolitics Manifesto
@Floppy - about 10 years ago