19-year-old Portuguese knocking about Ukrainian-Russian border was detained by the border guards of BS « Dergachi » of Kharkiv Detachment. The district inspector of BS learned from a local resident about seeing unfamiliar person not far away. The reaction group arrived at once at a specified place and caught a young boy 200m before the state border. This boy was the citizen of Portugal. During the interview it was established that the boy arrived to Russia in May 2010. After his one-time visa finished he decided on his friends’ advice first to get to Ukraine and then fly to Portugal through the airport Boryspil. The boy reached the border by taxi and crossed it on foot. At the present moment the detainee is at a special premise till his case will be considered in the court. The most likely outcome of this case is deportation of the detainee back to his country of origin.