evidence: The New Statesman has used the latest data from Britain and the EU to map the movement of migrants using unofficial routes to enter the UK and other European countries. We will update our graphics as new data is published, and have included historical data, to provide a definitive representation of the numbers behind the headlines. [...] The first map in the New Statesman’s tracker shows the total number of people travelling into the EU and the UK via irregular migration routes. While the term "illegal immigration" is often used to refer to the unauthorised entry of people into countries, claiming asylum is not illegal so the New Statesman will use the term "irregular immigration" instead. [...] Government data shows that more than a million immigrants came to the UK with work, study or other official visas in the year ending June 2022, compared with the 45,000 who reached the UK via irregular means.