社会主義者鎮圧法
The Anti-Socialist Laws or Socialist Laws (; officially "Gesetz gegen die gemeingefährlichen Bestrebungen der Sozialdemokratie", approximately "Law against the public danger of Social Democratic endeavours") were a series of acts, the first of which was passed on 19 October 1878 by the Reichstag lasting until 31 March 1881 and extended four times (May 1880, May 1884, April 1886 and February 1888).