The Law No. 5188 on Private Security Services;
www.alomaliye.com/5188_sayili_kanun_ozel_guvenlik.htm

The Regulation on the Execution for The Law on Private Security Services; The Circular on the Clauses to be considered within the Law No. 5188 and the Execution Regulation; 
www.egm.gov.tr

Labour Law No. 4857
www.calisma.gov.tr/mevzuat/4857_is_kanunu.htm