Records held by the NZSIS

1919 – 1941New Zealand Police: security intelligence records
1941 – 1945Security Intelligence Bureau (established by military; operating under Police control 1943 – 1945): all records
1945 – 1949New Zealand Police: security intelligence records
1949 – 1956New Zealand Police Special Branch: most records
1956 – 1969New Zealand Security Service: all records
1969 to dateNew Zealand Security Intelligence Service: all records