CACrown ArchivesThe cinema collection
Menu
Research dossier · History & Society

Suppression of Communism Act, 1950

South African law, renamed the "Internal Security Act" in 1976

Layered newspapers, civic records and oral-history reels arranged as chronological evidence
History and societyInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJul 9, 2026
Entity authorityQ1671012 ↗
Source-derived summary

The Suppression of Communism Act, 1950 (Act No. 44 of 1950), renamed the Internal Security Act in 1976, was legislation of the national government in apartheid South Africa which formally banned the Communist Party of South Africa and proscribed any party or group subscribing to communism, according to a uniquely broad definition of the term. It was also used as the basis to place individuals under banning orders, and its practical effect was to isolate and silence voices of dissent.

Description

The Act, which came into effect on 17 July 1950, defined communism as any scheme aimed at achieving change—whether economic, social, political, or industrial—"by the promotion of disturbance or disorder" or any act encouraging "feelings of hostility between the European and the non-European races [...] calculated to further [disorder]". The Minister of Justice could deem any person to be a communist if he found that person's aims to be aligned with these aims, and could issue an order severely restricting the freedoms of anyone deemed to be a communist. After a nominal two-week appeal period, the person's status as a communist became an unreviewable matter of fact, and subjected the person to being barred from public participation, restricted in movement, or imprisoned.

The government justified passage of the Act by noting the involvement of members of the South African Communist Party in the internal resistance to apartheid, the subversive tactics of communist parties more widely, as well as the perceived threat of the Soviet Union in the emerging Cold War and decolonisation.

The opposition in the House of Assembly protested certain functions of the act, such as the possibility to ban individuals purposely advocating communist goals, circumventing the normal rule of law guarantees in the South African legal system. The government responded by watering down the act, explicitly outlining the right to due process before penalties (i.e. fines or imprisonment) were executed, requiring the Minister of Justice to submit requests to ban to a three-member committee, affording the right to redress by those issued a banning order, as well as exempting labour unions from the sanctions included in the act.

Editorial summary

This brief starts where responsible research should: with the source description of “Suppression of Communism Act, 1950” as south African law, renamed the "Internal Security Act" in 1976. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA useful synthesis for locating the documentary relationships between formal authority, participants and affected communities. The current lead gives the account dated anchors—1950, 1976—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Suppression, Communism and South can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the history & society register because the source frames it as south African law, renamed the "Internal Security Act" in 1976. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Chronology, provenance and viewpoint should be read together before a broad social or political interpretation is accepted. The source revision retrieved here is dated Jul 9, 2026. The linked authority identifier is Q1671012. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1950 and 1976.

Critical limits

Later summaries often reconcile disputed chronology or motive more neatly than the contemporary record permits. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Compare institutional narratives with records created by participants and affected communities. Dates and formal titles are useful anchors, but not substitutes for context.

Best used for
  • Event chronology
  • Institutional context
  • Locating named record creators
Verify next

Contemporary correspondence, government or organizational records, oral histories and cited historical scholarship.

Three-step research path

  1. Establish the record: confirm the title “Suppression of Communism Act, 1950”, its source revision and the description used here.
  2. Expand the search: follow Suppression of Communism Act, 1950 primary sources, Suppression of Communism Act, 1950 archive and Suppression research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Suppression of Communism Act, 1950”?
  2. Who created the surviving record, and for what administrative purpose?
  3. Which voices are present, absent or mediated by the institution?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “Suppression of Communism Act, 1950” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.