Comparison

Read two legal systems against each other

Because every portal follows the same fifteen-section outline, the comparison is genuinely like-for-like rather than a collage of whatever each government happens to publish.

Select up to six documented jurisdictions

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Afghanistan Albania Algeria Andorra Angola Antigua and Barbuda Argentina Armenia Australia Austria Azerbaijan Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bhutan Bolivia Bosnia and Herzegovina Botswana Brazil Brunei Bulgaria Burkina Faso Burundi Cambodia Cameroon Canada Cape Verde Central African Republic Chad Chile China Colombia Comoros Costa Rica Croatia Cuba Cyprus Czechia DR Congo Denmark Djibouti Dominica Dominican Republic Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Eswatini Ethiopia Fiji Finland France Gabon Gambia Georgia Germany Ghana Greece Grenada Guatemala Guinea Guinea-Bissau Guyana Haiti Holy See (Vatican City)Honduras Hungary Iceland India Indonesia Iran Iraq Ireland Israel Italy Ivory Coast Jamaica Japan Jordan Kazakhstan Kenya Kiribati Kuwait Kyrgyzstan Laos Latvia Lebanon Lesotho Liberia Libya Liechtenstein Lithuania Luxembourg Madagascar Malawi Malaysia Maldives Mali Malta Marshall Islands Mauritania Mauritius Mexico Micronesia Moldova Monaco Mongolia Montenegro Morocco Mozambique Myanmar Namibia Nauru Nepal Netherlands New Zealand Nicaragua Niger Nigeria North Korea North Macedonia Norway Oman Pakistan Palau Palestine Panama Papua New Guinea Paraguay Peru Philippines Poland Portugal Qatar Republic of the Congo Romania Russia Rwanda Saint Kitts and Nevis Saint Lucia Saint Vincent and the Grenadines Samoa San Marino Saudi Arabia Senegal Serbia Seychelles Sierra Leone Singapore Slovakia Slovenia Solomon Islands Somalia South Africa South Korea South Sudan Spain Sri Lanka Sudan Suriname Sweden Switzerland Syria São Tomé and Príncipe Tajikistan Tanzania Thailand The Bahamas Timor-Leste Togo Tonga Trinidad and Tobago Tunisia Turkey Turkmenistan Tuvalu Uganda Ukraine United Arab Emirates United Kingdom United States Uruguay Uzbekistan Vanuatu Venezuela Vietnam Yemen Zambia Zimbabwe

Comparison of selected legal systems
Attribute	New ZealandReviewed	IranReviewed
Legal family	Common law	Islamic law with civil law codification
System of government	Constitutional monarchy	Islamic republic
Constitution	Uncodified — principally the Constitution Act 1986	Constitution of the Islamic Republic of Iran
In force since	1986	1979
Capital	Wellington	Tehran
Official languages	English, Māori, New Zealand Sign Language	Persian
Currency	New Zealand dollar (NZD)	Rial (IRR)
Population	5,200,000	89,000,000
Division of powers	Unitary. Parliament legislates for the whole country and there are no states or provinces. Regional and territorial authorities exist only under the Local Government Act 2002 and exercise delegated statutory powers. Tokelau is a non-self-governing territory, while the Cook Islands and Niue are self-governing in free association with New Zealand and have their own legal systems.	Unitary, with 31 provinces headed by governors-general appointed by the Interior Ministry, alongside elected city and village councils created by the Constitution and operating since 1999 with limited competences.
How law is made	A bill has a first reading, select committee scrutiny (usually with public submissions), second reading, committee of the whole House, and third reading, followed by Royal assent. There is no upper house, so the select committee stage carries the weight that a second chamber would elsewhere. The Attorney-General must report to the House under section 7 of the Bill of Rights Act on any bill that appears inconsistent with protected rights, but the House may pass it anyway. Reserved provisions of the Electoral Act 1993 require either 75% of all members or a majority at referendum.	A bill is introduced by the Government or by at least fifteen deputies, passes the Majlis, and goes to the Guardian Council, which has ten days, extendable, to find it consistent with Islam and the Constitution. If the Council objects, the bill returns for amendment; persistent disagreement goes to the Expediency Discernment Council, whose decision is final. Only then does the President sign and publish.
Legal profession	A fused profession under the Lawyers and Conveyancers Act 2006: a lawyer is admitted as a barrister and solicitor of the High Court, and may then practise as a barrister sole or in a firm. Admission requires an approved law degree, the Professional Legal Studies Course and a certificate of character. The New Zealand Law Society \| Te Kāhui Ture o Aotearoa regulates the profession, and King's Counsel are appointed from senior practitioners.	Two parallel routes to practice, which is unusual and consequential: attorneys licensed by the Iranian Bar Association (Kanoon-e Vokala), a self-governing body dating to 1953, and attorneys licensed under Article 187 of the Third Development Plan directly by the judiciary. The two groups have contested each other's standing for two decades. Notaries operate licensed offices under the registration organisation, and their authentication is required for property transfers, marriage contracts and powers of attorney.

A comparison table flattens nuance by design. Where a difference matters to a decision you are making, open both portals and read the section in full — the constitutional detail behind a one-line summary is often the part that governs the outcome.