There is currently no avenue to appeal the decision of the Investigatory Powers Tribunal in the UK
If a complainant would like to take his Human Rights claim further, they can contact the European Court of Human Rights in Strasbourg. The Complainant will need to prove that they have taken up all the legal avenues open to them within the United Kingdom before the European Court will consider their case.
The above claim and complaints forms are in Adobe's Acrobat Portable Document Format (PDF) and can be completed, saved and returned to us via e-mail with a computer. You will need Adobe Acrobat Reader installed on your computer to read and complete the forms (available from the Adobe web site). Alternatively, you can complete the form by hand and post to: The Investigatory Powers Tribunal, PO Box 33220, London, SW1H 9ZQ