Citation Rankings
Highly Cited Researchers

World Highly Cited Researchers CitationLaw / Constitutional Law Rankings 2025

The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Total Citation Counts Rankings
Ranking Based On Selection :51
United States
Joseph Blocher
constitutional law
the First Amendment
the Second Amendment
capital punishment
property
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,161
1,699
0.537
* Total Citation Counts Rankings
Ranking Based On Selection :52
United States
Deborah Hellman
Constitutional law
discrimination
campaign finance
money and rights
bioethics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,089
1,437
0.465
* Total Citation Counts Rankings
Ranking Based On Selection :53
United States
Mary Anne Franks
constitutional law
criminal law
First Amendment
privacy
free speech
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,074
1,984
0.645
* Total Citation Counts Rankings
Ranking Based On Selection :54
United States
Mary Anne Case
feminist theory
sexuality
constitutional law
religion
family law
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,031
872
0.288
* Total Citation Counts Rankings
Ranking Based On Selection :55
United States
Adam B Cox
Constitutional Law
Immigration Law
Law and Politics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,018
1,071
0.355
* Total Citation Counts Rankings
Ranking Based On Selection :56
United States
Richard S Kay
Law
Constitutional Law
Legal History
Comparative Law
Legal Theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,004
676
0.225
* Total Citation Counts Rankings
Ranking Based On Selection :57
Singapore
Andrew James Harding
Asian Laws
constitutional law
comparative law
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,960
1,542
0.521
* Total Citation Counts Rankings
Ranking Based On Selection :58
United States
Stephen Vladeck
Constitutional Law
Federal Courts
National Security Law
Counterterrorism Law
Military Law
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,928
1,122
0.383
* Total Citation Counts Rankings
Ranking Based On Selection :59
Indonesia
Muchamad Ali Safa At
law
constitutional law
jurisprudence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,920
2,109
0.722
* Total Citation Counts Rankings
Ranking Based On Selection :60
United States
Peter M Shane
law
constitutional law
administrative law
U.S. President
Congress
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,899
659
0.227
* Total Citation Counts Rankings
Ranking Based On Selection :61
Italy
Francesco Palermo
Comparative Constitutional Law
Constitutional Law
Multiculturalism
Minorities
Participatory and Direct Democracy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,839
1,321
0.465
* Total Citation Counts Rankings
Ranking Based On Selection :62
United States
James Alfini
mediation
constitutional law
judicial ethics
legal ethics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,835
326
0.115
* Total Citation Counts Rankings
Ranking Based On Selection :63
Brazil
Hermes Zaneti Junior
civil procedure
comparative law
constitutional law
collective redress
precedents and legal theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,817
1,514
0.537
* Total Citation Counts Rankings
Ranking Based On Selection :64
Spain
Ruben Martinez Dalmau
Derecho constitucional
constitutional law
derechos de la naturaleza
democracia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,760
1,287
0.466
* Total Citation Counts Rankings
Ranking Based On Selection :65
United States
R George Wright
constitutional law
free speech
legal philosophy
administrative law
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,734
793
0.290
* Total Citation Counts Rankings
Ranking Based On Selection :66
United States
Brannon Denning
Constitutional Law
dormant Commerce Clause doctrine
federalism
Supreme Court doctrine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,660
523
0.197
* Total Citation Counts Rankings
Ranking Based On Selection :67
United States
John Harrison
constitutional law
separation of powers
remedies
constitutional history
federal courts
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,646
767
0.290
* Total Citation Counts Rankings
Ranking Based On Selection :68
United States
Richard Garnett
Constitutional Law
Law & Religion
First Amendment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,624
500
0.191
* Total Citation Counts Rankings
Ranking Based On Selection :69
Spain
Victor Ferreres Comella
derecho constitucional
constitutional law
comparative law
arbitration
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,622
1,012
0.386
* Total Citation Counts Rankings
Ranking Based On Selection :70
United States
Jeffrey Abramson
political theory
constitutional law
jury
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,616
380
0.145
* Total Citation Counts Rankings
Ranking Based On Selection :71
Uganda
J Oloka-Onyango
Constitutional Law
Human Rights
Refugee Law
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,612
572
0.219
* Total Citation Counts Rankings
Ranking Based On Selection :72
United States
Scott Sundby
Criminal Law
Constitutional Law
Empirical
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,610
426
0.163
* Total Citation Counts Rankings
Ranking Based On Selection :73
United States
Frederick Gedicks
Law & Religion
Constitutional Law
Jurisprudence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,582
508
0.197
* Total Citation Counts Rankings
Ranking Based On Selection :74
Spain
Agustín José Menéndez
Political Philosophy
European Constitutional Law
Constitutional Dimensions of Fundamental Rights
Wicked Legal Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,564
822
0.321
* Total Citation Counts Rankings
Ranking Based On Selection :75
United States
Stephen Sachs
Civil Procedure
Constitutional Law
Legal History
Conflict of Laws
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,563
1,680
0.655
* Total Citation Counts Rankings
Rankings
308,097
United States
103,153
1,069
Ranking Based On Selection: 51
Joseph Blocher
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,161
1,699
0.537
constitutional law
the First Amendment
the Second Amendment
capital punishment
property
* Total Citation Counts Rankings
Rankings
314,102
United States
104,812
670
Ranking Based On Selection: 52
Deborah Hellman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,089
1,437
0.465
Constitutional law
discrimination
campaign finance
money and rights
bioethics
* Total Citation Counts Rankings
Rankings
315,377
United States
105,150
432
Ranking Based On Selection: 53
Mary Anne Franks
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,074
1,984
0.645
constitutional law
criminal law
First Amendment
privacy
free speech
* Total Citation Counts Rankings
Rankings
319,171
United States
106,211
661
Ranking Based On Selection: 54
Mary Anne Case
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,031
872
0.288
feminist theory
sexuality
constitutional law
religion
family law
* Total Citation Counts Rankings
Rankings
320,294
United States
106,516
927
Ranking Based On Selection: 55
Adam B Cox
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,018
1,071
0.355
Constitutional Law
Immigration Law
Law and Politics
* Total Citation Counts Rankings
Rankings
321,476
United States
106,845
553
Ranking Based On Selection: 56
Richard S Kay
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,004
676
0.225
Law
Constitutional Law
Legal History
Comparative Law
Legal Theory
* Total Citation Counts Rankings
Rankings
325,378
Singapore
1,990
936
Ranking Based On Selection: 57
Andrew James Harding
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,960
1,542
0.521
Asian Laws
constitutional law
comparative law
* Total Citation Counts Rankings
Rankings
328,278
United States
108,800
1,040
Ranking Based On Selection: 58
Stephen Vladeck
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,928
1,122
0.383
Constitutional Law
Federal Courts
National Security Law
Counterterrorism Law
Military Law
* Total Citation Counts Rankings
Rankings
328,952
Indonesia
1,545
49
Ranking Based On Selection: 59
Muchamad Ali Safa At
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,920
2,109
0.722
law
constitutional law
jurisprudence
* Total Citation Counts Rankings
Rankings
330,959
United States
109,573
863
Ranking Based On Selection: 60
Peter M Shane
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,899
659
0.227
law
constitutional law
administrative law
U.S. President
Congress
* Total Citation Counts Rankings
Rankings
336,525
Italy
15,140
22
Ranking Based On Selection: 61
Francesco Palermo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,839
1,321
0.465
Comparative Constitutional Law
Constitutional Law
Multiculturalism
Minorities
Participatory and Direct Democracy
* Total Citation Counts Rankings
Rankings
336,957
United States
111,184
1
Ranking Based On Selection: 62
James Alfini
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,835
326
0.115
mediation
constitutional law
judicial ethics
legal ethics
* Total Citation Counts Rankings
Rankings
338,649
Brazil
9,015
58
Ranking Based On Selection: 63
Hermes Zaneti Junior
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,817
1,514
0.537
civil procedure
comparative law
constitutional law
collective redress
precedents and legal theory
* Total Citation Counts Rankings
Rankings
344,339
Spain
10,404
445
Ranking Based On Selection: 64
Ruben Martinez Dalmau
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,760
1,287
0.466
Derecho constitucional
constitutional law
derechos de la naturaleza
democracia
* Total Citation Counts Rankings
Rankings
347,087
United States
114,002
170
Ranking Based On Selection: 65
R George Wright
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,734
793
0.290
constitutional law
free speech
legal philosophy
administrative law
* Total Citation Counts Rankings
Rankings
354,717
United States
116,109
6
Ranking Based On Selection: 66
Brannon Denning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,660
523
0.197
Constitutional Law
dormant Commerce Clause doctrine
federalism
Supreme Court doctrine
* Total Citation Counts Rankings
Rankings
356,171
United States
116,511
738
Ranking Based On Selection: 67
John Harrison
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,646
767
0.290
constitutional law
separation of powers
remedies
constitutional history
federal courts
* Total Citation Counts Rankings
Rankings
358,635
United States
117,204
349
Ranking Based On Selection: 68
Richard Garnett
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,624
500
0.191
Constitutional Law
Law & Religion
First Amendment
* Total Citation Counts Rankings
Rankings
358,824
Spain
10,862
189
Ranking Based On Selection: 69
Victor Ferreres Comella
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,622
1,012
0.386
derecho constitucional
constitutional law
comparative law
arbitration
* Total Citation Counts Rankings
Rankings
359,475
United States
117,437
1,113
Ranking Based On Selection: 70
Jeffrey Abramson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,616
380
0.145
political theory
constitutional law
jury
* Total Citation Counts Rankings
Rankings
359,930
Uganda
57
28
Ranking Based On Selection: 71
J Oloka-Onyango
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,612
572
0.219
Constitutional Law
Human Rights
Refugee Law
* Total Citation Counts Rankings
Rankings
360,146
United States
117,626
474
Ranking Based On Selection: 72
Scott Sundby
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,610
426
0.163
Criminal Law
Constitutional Law
Empirical
* Total Citation Counts Rankings
Rankings
363,250
United States
118,477
180
Ranking Based On Selection: 73
Frederick Gedicks
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,582
508
0.197
Law & Religion
Constitutional Law
Jurisprudence
* Total Citation Counts Rankings
Rankings
365,204
Spain
11,079
731
Ranking Based On Selection: 74
Agustín José Menéndez
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,564
822
0.321
Political Philosophy
European Constitutional Law
Constitutional Dimensions of Fundamental Rights
Wicked Legal Systems
* Total Citation Counts Rankings
Rankings
365,256
United States
119,017
1,187
Ranking Based On Selection: 75
Stephen Sachs
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,563
1,680
0.655
Civil Procedure
Constitutional Law
Legal History
Conflict of Laws