Deducing and investigating title
Acts of Parliament
www.opsi.gov.uk/acts.htm
Keep up to date with statutory developments.
Supreme Court judgments
https://www.supremecourt.uk/news/latest-judgments.html
Keep up to date with important new cases.
Land Registry
www.landregistry.gov.uk
Lands Tribunal Online
www.landstribunal.gov.uk/index.htm
The Lands Tribunal considers applications to discharge or modify restrictive covenants.
Law Commission
https://www.lawcom.gov.uk/
Keep up to date on proposals for law reform.
Ordnance Survey
www.ordnancesurvey.co.uk/oswebsite
It might be useful to consult a detailed Ordnance Survey map when considering boundary problems and to compare with title deed plans.
A street map anywhere in the UK
www.streetmap.co.uk