手法を比較

	比較法ドグマティック法学研究	ドクトリン法学研究
分野	フィールド調査法	フィールド調査法
系統	Process / pipeline	Process / pipeline
提唱年	19th century origins; modern systematic form 1960s–1998	19th century (systematised ~1860s–1880s in common law jurisdictions)
提唱者	Rooted in classical comparative law (Anselm von Feuerbach, early 19th c.); systematised by Zweigert & Kötz (1998)	Common law tradition; systematised by jurists such as A.V. Dicey and John Austin
種類	Qualitative legal research design	Legal-analytical research method
原典	Zweigert, K., & Kötz, H. (1998). An Introduction to Comparative Law (3rd ed., T. Weir, Trans.). Oxford University Press. ISBN: 978-0198268598	Hutchinson, T. (2013). Researching and Writing in Law (3rd ed.). Thomson Reuters. ISBN: 9780455229829
別名	comparative-doctrinal method, cross-jurisdictional doctrinal analysis, comparative black-letter law research, CDLR	black-letter law research, legal doctrine analysis, analytical jurisprudence, traditional legal scholarship
関連	6	6
概要	Comparative doctrinal legal research systematically identifies, expounds, and compares the legal rules, principles, and doctrines governing the same problem across two or more jurisdictions. It combines the internal rigour of doctrinal analysis — mapping the authoritative sources of a single legal system — with the external perspective of comparative law, asking whether different legal systems solve the same social problem in similar or divergent ways and why.	Doctrinal legal research is the foundational methodology of legal scholarship. It systematically identifies, reads, and analyses authoritative legal sources — statutes, case law, constitutional texts, and regulations — to describe, explain, and critique the content and internal logic of legal doctrine. By working within the accepted hierarchy of legal sources, it answers the question 'What is the law?' with analytical rigour and interpretive precision, producing descriptions of settled doctrine and arguments for how ambiguities should be resolved.