word | | Legal system |
| based | San Marino | based on civil law system with Italian law influences; has not accepted compulsory ICJ jurisdiction |
| based | Sao Tome and Principe | based on Portuguese legal system and customary law; has not accepted compulsory ICJ jurisdiction |
| based | Saudi Arabia | based on Sharia law, several secular codes have been introduced; commercial disputes handled by special committees; has not accepted compulsory ICJ jurisdiction |
| based | Senegal | based on French civil law system; judicial review of legislative acts in Constitutional Court; the Council of State audits the government's accounting office; accepts compulsory ICJ jurisdiction with reservations |
| based | Serbia | based on civil law system |
| based | Seychelles | based on English common law, French civil law, and customary law; has not accepted compulsory ICJ jurisdiction |
| based | Sierra Leone | based on English law and customary laws indigenous to local tribes; has not accepted compulsory ICJ jurisdiction |
| based | Singapore | based on English common law; has not accepted compulsory ICJ jurisdiction |
| based | Slovakia | civil law system based on Austro-Hungarian codes; accepts compulsory ICJ jurisdiction with reservations; legal code modified to comply with the obligations of Organization on Security and Cooperation in Europe (OSCE) and ... |
| based | Slovenia | based on civil law system; has not accepted compulsory ICJ jurisdiction |
| based | South Africa | based on Roman-Dutch law and English common law; has not accepted compulsory ICJ jurisdiction |
| based | Sudan | based on English common law and Islamic law; as of 20 January 1991, the now defunct Revolutionary Command Council imposed Islamic law in the northern states; Islamic law applies to all residents ... |
| based | Suriname | based on Dutch legal system incorporating French penal theory; accepts compulsory ICJ jurisdiction with reservations |