At the request of the Party President and the Federal Executive, Lord Alderdice conducted an independent inquiry into improving process and culture within the Liberal Democrats with a particular focus on race and ethnicity. The review examined the issues and/or barriers faced by BAME members and supporters and helped to determine what the party could do to take action in this specific area.
You can read his article launching the report in 2018 here: https://www.libdems.org.uk/alderdice-report-race-ethnic-minorities-culture-liberal-democrats.
Here is his report: