Polish Police officer, chief sergeant Dariusz Tybura (left) talks with Essex Police officer Paul Harrison, as they walk through Harlow, north of London yesterday. Two Polish officers joined the police in the town of Harlow where a Polish man, Arkadiusz Jozwik, known as Arek, was killed in a possible hate crime incident last month, police said yesterday. They are being deployed in the Essex town for a week to reassure local people following a surge in reported attacks against foreigners.