Given name: Jakub Family name: Lejkin

In 1928 or 1929 he was admitted, exceptionally, to the Cadet Officers' Training Centre in Jarocin. He graduated with the second position. In 1940 he was part of the Section of Service and Training. Later he replaced Lederman as the head of the Section of Service. He drew up Capital City Police Headquarters (KSP) orders. On 22 July 1942 he was the head of the Order Services, in Szerynski's absence. He commanded the Order Services and became a very controversial figure during deportation. He was shot by virtue of sentence of an underground court. He was not very tall.