Welcome to BAILII, where you can find British and Irish case law & legislation, European Union case law, Law Commission reports, and other law-related British and Irish material.
To locate statutes you can select the "Legislation Search" in the right hand menu. You will have the option to limit by jurisdiction (United Kingdom, Wales, Scotland,etc.) in your search results.
Use the "Cases" search template to locate cases from any of the BAILII databases. You can search by citation, case name, and keywords.
Lexis Nexis Quicklaw has a collection of international law databases. You can access these by using the Source Directory--Browse Sources---Filter by Country. Content by country/region varies by jurisdiction.
Westlaw Canada has a collection of international databases. Access them either through a Westlaw International tab, or by using the Directory --All Databases (in the left hand menu) and selecting your Country collection. Not all countries datasets are complete.