The U.K. government is set to introduce a long-debated system to tackle the issue of immigration, one of the country’s most heated political issues. 

A new points-based system was unveiled this week, with the government arguing it has fulfilled a long-held desire on the part of the British electorate to end freedom of movement, especially following the Brexit vote.

Business leaders have responded with dismay, indicating the debate over immigration is far from over.

Home Secretary Priti Patel Wednesday said: “Today is a historic moment for the whole country. We’re ending free movement, taking back control of our borders

Read more: Brexit Britain to get its points-based immigration system