I picked up an argument in a Government Motion to Exclude Defendant’s
Proffered Expert Witness in the Kepke prosecution, United States v. Kepke
(N.D. Cal. Criminal No. 3:21-CR-00155-JD), Motion dated 8/5/22, here.
In general, the Government claims that Kepke’s expert witness disclosures were
too cryptic to understand the expert witness’s proffered testimony, but the
Government inferred that the expert witness would improperly testify about the
law. Here are the three key paragraphs I focus on (Motion pp, 7-9):
Expert
witnesses are not permitted to offer opinions consisting of their
interpretation of the law. See Hangarter v. Provident Life and Acc. Ins. Co.,
373 F.3d 998, 1018 (9th Cir. 2004) (quoting Mukhtar v. Cal. State Univ.,
Hayward, 299 F.3d 1053, 1066 n. 10 (9th Cir. 2002), overruled on other
grounds by Barabin v. AstenJohnson, Inc., 740 F.3d 457, 467 (9th Cir.
2014)); see also Snap-Drape, Inc. v. Comm’r, 98 F.3d 194, 198 (5th Cir.
1996). “[I]instructing the jury as to the applicable law is the distinct and
exclusive province of the court.” Nationwide Transp. Fin. V. Cass Info.
Sys., Inc., 523, F.3d 1051, 1058-59 (9th Cir. 2008); see also United
States v. Caputo, 517 F.3d 935, 942 (7th Cir. 2008) (“The only legal
expert in a federal courtroom is the judge.”); United States v. Weitzenhoff,
35 F.3d 1275, 1287 (9th Cir. 1993); CZ Services, Inc. v. Express Scripts
Holding Co., 3:18-cv-04217-JD, 2020 WL 4518978, at * 2 (N.D. Cal. Aug. 5,
2020) (“[L]egal opinions are not the proper subject of expert testimony. Reed
v. Lieurance, 863 F.3d 1196, 1209 (9th Cir. 2017). An expert may not give
opinions that are legal conclusions, United States v. Tamman, 782 F.3d
543, 552-53 (9th Cir. 2015), or attempt to advise the jury on the law, Strong
v. Valdez Fine Foods, 724 F.3d 1042, 1046-47 (9th Cir. 2013).”).
In at least
one criminal tax case, the Ninth Circuit approved expert testimony about the
law where “the theory of the defense [was] that there [was] a good faith
dispute as to the interpretation of the tax laws.” See United States v.
Clardy, 612 F.2d 1139, 1153 (9th Cir. 1980) (citing United States v.
Garber, 607 F.2d 92 (5th Cir. 1979) (distinguished by United States v.
Burton, 737 F.2d 439, 444 (5th Cir. 1984)). But that does not mean that
legal evidence is automatically admissible in all criminal tax trials. To the
contrary, courts regularly exclude legal experts in criminal tax cases. See,
e.g., United States v. Boulware, 558 F.3d 971, 974-75 (9th Cir. 2009)
(affirming exclusion of expert testimony that specific “corporate distributions
were legally non-taxable” as an impermissible legal opinion); see also United
States v. Curtis, 782 F.2d 593, 598-600 (6th Cir. 1996) (affirming
exclusion of expert testimony and distinguishing Garber); United
States v. Harris, 942 F.2d 1125, 1132 n.6 (7th Cir. 1991) (evidence “may
include expert testimony about case law, to the extent that the defendant
claims actual reliance on that case law. Case law on which the defendant did
not in fact rely is irrelevant because only the defendant’s subjective belief
is at issue.”); United States v. Ingredient Tech. Corp., 698 F.2d 88,
96-97 (2d Cir. 1983) (affirming exclusion of expert testimony and
distinguishing Garber); United States v. Alessa, 3:19-cr-00010,
2021 WL 4498638, at *4 (D. Nev. Sept. 30, 2021) (evidence of a conflict in the
law is irrelevant if Defendant was not aware of the conflict).
Here, Mr.
Read’s proposed testimony must be excluded because, reading between the lines
(as we must because the disclosures do not reveal Mr. Read’s actual opinions),
it seems likely that Mr. Read plans to testify about his understanding of the
law. At best, Mr. Read’s opinion that certain offshore structures are
permissible or even common is tantamount to testimony that, in his opinion,
Defendant’s actions were legal. This is exactly the type of opinion that is
prohibited under Ninth Circuit law because “‘[w]hen an expert undertakes to
tell the jury what result to reach, this does not aid the jury in making a decision, but rather attempts to substitute
the expert’s judgment for the jury’s.’” United States v. Diaz, 876 F.3d
1194, 1197 (9th Cir. 2017) (quoting United States v. Duncan, 42 F.3d 97,
101 (2d Cir. 1994)). And any minor probative value the proffered testimony
might have would be substantially outweighed by a danger of unfair prejudice,
confusing the issues, and misleading the jury.