 Nyorai kupfuurira kweiyi ndima - Musi wa1 Ndira 1919, mapurisa akazvimiririra akazova sangano renyika, riri pasi peBazi rezvemukati uye rinotungamirwa neDhipatimendi reMapurisa . Dare reMapurisa rainzi Politseivalitsus pakati pa1929-1938, uye Politseitalitus pakati pa1938-1940. Musi waDecember 17, 1919, Estonian Constituent Assembly yakapa mutemo wePolice Act. Mapurisa omumunda akagadzwa, ayo akanga ane basa rokudzivirira kuchengeteka kwevanhu norunyararo. Matunhu emapurisa akaumbwa zvichienderana nematunhu nemaguta, izvi zvakakamurwa kuita zvikamu, izvo zvakakamurwazve kuita matunhu. Mapurisa emhosva akagadzwa musi wa 5 Ndira 1920, uye Estonian Internal Security Service musi wa 12 Kubvumbi 1920. Uyezve, mapurisa okuchengetera akagadzwa muna 1920. Mapurisa aiumbwa nemapurisa emunda uye Internal Security Service, ayo aitevedzerwa kuBazi rezvemukati, uye mapurisa ematsotsi, ayo aitevedzerwa kuBazi rezvemitemo. Pana 1 May 1924, mabasa acho akabatanidzwa pasi pesimba reDirectorate of Police. Pana 1 December 1924, kwakava nokuedza kukundikana kwechiutonemaSoviet, umo mapurisa mashanu akaurayiwa. Ikoku kwakatungamirira kukuvandudzwa kukuru mumapurisa. Kuumbwa kwavashandi kwakaiswa mugadziriro, mapurisa akawedzerwa, nhamba yemotokari dzokutakura yakawedzerwa, zvombo zvemazuva ano zvikuru zvakaiswa mubasa uye mikana yokutaurirana yakavandudzwa. Muna 1925, chikoro chemapurisa chakavambwa muTallinn. 