Earliest electronic monitoring equipment originated in United States of 1960s. Compared with various countries in the world, Germany implemented electronic monitoring system later than others. On May 2, 2000 Frankfurt region of Germany firstly applied electronic monitoring in the field of criminal justice but still only for practical operation. Germany's first legislation of electronic monitoring is in Baden Wurttemberg state. Electronic surveillance system of Baden Württemberg state in German has officially legislated on July 29th 2009 and entered into force on August 7th at the same year, which is also the the first electronic surveillance legislation in German. The main hope to promote the legislation is through electronic surveillance system to achieve the purpose of re-socialization and to reduce the fiscal burden of government. The bill's primarily reference is based on other countries' legislation; in hope to be future legislative reference for other states in German.