Thank you for sharing!

Your article was successfully shared with the contacts you provided.

In countries where the ‘rule of law’ applies, there is usually a dislike of legislation which has retrospective effect. In this brief post, I do not seek to discuss in any detail the merits or otherwise of the arguments for or against retrospective legislation, save to say that with regard to legal certainty, it is important both for individual citizens and business enterprises as well as other legal entities that they can assess the legality and legal effects of a planned action before instituting such action. They ought not be exposed to the risk of burdensome, ex post changes to the legal rules.

This premium content is reserved for
Legal Week Subscribers.


  • Trusted insight, news and analysis from the UK and across the globe
  • Connections to senior business lawyers within the leading law firms and legal departments
  • Unique access to ALM's unrivalled, market-leading reporting in the US and Asia and cutting-edge research, including Legal Week's UK Top 50 and Global 100 rankings
  • The Legal Week Daily News Alert, Editor's Highlights, and Breaking News digital newsletters and more, plus a choice of over 70 ALM newsletters
  • Optimized access on all of your devices: desktop, tablet and mobile
  • Complete access to the site's full archive of more than 56,000 articles

Already have an account?

For enterprise-wide or corporate enquiries, please contact Paul Reeves on Preeves@alm.com or call on +44 (0) 203 875 0651

Dig Deeper


Legal Week Newsletters & Alerts

Sign Up Today and Never Miss Another Story.

As part of your subscription, you can sign up for an unlimited number of a wide range of complimentary newsletters and alerts. Get the timely legal news and critical analysis you cannot afford to miss. Tailored just for you. In your inbox. Every day.

Copyright © 2019 American Lawyer Media International, LLC. All Rights Reserved.