How do judges of the California Court of Appeal reach the bench?

The court's current selection method is merit selection with retention.

California Court of Appeal / Joined 2016 / Active

Martin John Tangeman

Associate Justice, California Court of Appeal

Martin John Tangeman is an Associate Justice of the California Court of Appeal, serving since 2016. He previously served on the Superior Court of California, County of San Luis Obispo. Opinions & record ↓ Sources ↓

Tenure: Since 2016 · 10 yrs

Judicial service

Year	Court	Appointed by	Vote
2001	Superior Court of California, County of San Luis Obispo	–	–
2008	Superior Court of California, County of San Luis Obispo	–	–
2009	Superior Court of California, County of San Luis Obispo	–	–
2016	Superior Court of California, County of San Luis Obispo	–	–
2016	California Court of Appeal	–	–
2016	California Court of Appeal	–	–

Education

California State University-Fullerton		1975
UC Law San Francisco		1978

Judicial Record

In our data, Tangeman authored 27 published opinions for the court (2016–2019), plus 1 concurrence. Most cited: People v. R.G. (In re R.G.) (80 citations).

Published, precedential opinions from the CourtListener corpus. Counts and rankings are objective and recomputable: how we count. We describe the record, not the judge. 28 of these were attributed to Tangeman by a unique court-, date-, and surname-match against our roster (marked ), because CourtListener recorded no author for them. Each links to the official text to verify. How we match.

Selected opinions

Year	Case	Citation	Cited
2019	People v. R.G. (In re R.G.)†	247 Cal. Rptr. 3d 24	80
2019	People v. Hernandez†	246 Cal. Rptr. 3d 87	78
2018	J.H. v. Superior Court of San Luis Obispo Cnty.†	229 Cal. Rptr. 3d 146	49
2018	People v. Olvera†	235 Cal. Rptr. 3d 200	43
2019	People v. M.S. (In re M.S.)· Concurrence†	244 Cal. Rptr. 3d 580	28
2019	People v. Grundfor†	251 Cal. Rptr. 3d 586	23
2018	Pub. Guardian of the Cnty. of San Luis Obispo v. S.A. (In re S.A.)†	235 Cal. Rptr. 3d 744	23
2019	John Doe v. Westmont Coll.†	246 Cal. Rptr. 3d 369	22
2018	Williams v. Atria Las Posas†	235 Cal. Rptr. 3d 341	19
2016	Khosh v. Staples Construction†	4 Cal. App. 5th 712	18
2016	People v. Medelez†	2 Cal. App. 5th 659	16
2018	Glovis Am., Inc. v. Cnty. of Ventura†	238 Cal. Rptr. 3d 895	15
2019	People v. Martinez†	246 Cal. Rptr. 3d 442	12
2017	Santa Clara Waste Water Co. v. Allied World Nat'l Assurance Co.†	227 Cal. Rptr. 3d 257	12
2018	People v. Hatt†	228 Cal. Rptr. 3d 871	11

Showing the 15 most-cited of 28 authored opinions in our data. “Cited” is inbound citations across the CourtListener corpus. Case links open the ruling’s full text (CourtListener) or its page here; read the methodology and verify against the primary source.

Questions & answers

How do judges of the California Court of Appeal reach the bench?: The court's current selection method is merit selection with retention.
Which court is Martin John Tangeman on?: Martin John Tangeman is an Associate Justice of the California Court of Appeal.

Sources

Each fact on this page traces to a primary public record.

How we source & reconcile data → Data & Sources

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10 years on the California Court of Appeal. Data as of 2026-03-31. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).