The Constitution Unit
The Constitution Unit is a UK-based think tank that specialises in constitutional affairs and comparative constitutional studies. Founded in 1995 by Robert Hazell CBE (who remains Director of the Unit), it is now based within the Department of Political Science at University College London.
Research areas 
The Constitution Unit has done research on every aspect of the UK government’s constitutional reform programme. Initially their work was forward looking, laying the ground for constitutional changes; more recently they have moved on to research the impact of those changes. It did early work on the Human Rights Act 1998; devolution; reform of the House of Lords; referendums; new voting systems; the new Supreme Court; Church and State; constitutional watchdogs; freedom of information legislation (FOI); and parliamentary reform. More evaluative work has covered the impact of devolution, House of Lords reform and FOI.
The Constitution Unit was commended for its influential role in the constitutional reform of Scotland and Wales in a report outlining 100 world-changing discoveries, innovations and research projects to come out of UK universities in the last 50 years. 
- UCL Department of Political Science
- The Guardian entry on The Constitution Unit
- Social Sciences pages of Intute entry on The Constitution Unit