Self-declared “citizen patrols” – some of them hundreds strong – have gathered on the Polish side of the border with Germany to oppose returns of migrants whom the German authorities have found to have entered illegally from Poland. Over the last two years, Germany has sent back thousands of such migrants, prompting a growing backlash in Poland. The practice has been criticised by the Polish government, which is in turn facing accusations from the right-wing opposition that it is taking too little action in response. On Saturday, a group of around 200 residents of Szczecin, a Polish city near the...