State v. Curtis

IN THE SUPERIOR COURT OF THE STATE OF DELAWARE

STATE OF DELAWARE )
)
v. ) I.D. No. 2012010059
) 2101003496
GEORGE CURTIS, )
)
Defendant. )

Submitted: July 30, 2025
Decided: September 16, 2025

ORDER

Upon Defendant’s Motion in Limine to Exclude Dr. Mechanick [sic] Testimony

DENIED

1. Defendant has filed a motion in limine to exclude the expert testimony
of Dr. Stephen Mechanick. For the reasons that follow, Defendant’s motion is
DENIED.
PROCEDURAL BACKGROUND
2. On May 30, 2023, Defendant filed a Motion to Withdraw Guilty Plea,
alleging that he did not knowingly and voluntarily enter his plea due to mental health
conditions, including Post-Traumatic Stress Disorder, Bipolar II Disorder,
Dissociative Identity Disorder, and Generalized Anxiety Disorder, combined with a
lack of sleep the night before entering the plea. As a result, Defendant was evaluated
by Dr. Laura Cooney-Koss and Dr. Stephen Mechanick. On November 4, 2024, the
State provided Defendant with a copy of Dr. Mechanick’s psychological report.
3. On December 10, 2024, and December 11, 2024, this Court heard
expert testimony from Dr. Stephen Mechanick (“Dr. Mechanick”) concerning
Defendant George Curtis’ competency at the time he entered his guilty plea.
4. At no point before or during Dr. Mechanick’s testimony did Defendant
object to Dr. Mechanick’s qualifications as an expert under Delaware Rule of
Evidence (“D.R.E.”) 702 1, nor did Defendant challenge the admissibility of Dr.
Mechanick’s testimony on Daubert grounds.2
5. On July 16, 2025, more than seven months after Dr. Mechanick testified
and his expert opinion was admitted into evidence, Defendant filed a pro se Motion
in Limine seeking to exclude Dr. Mechanick’s expert testimony.
6. On July 30, 2025, the State filed a response opposing Defendant’s
motion, arguing that the Defendant’s failure to timely object waived any challenge
to the admissibility of Dr. Mechanick’s testimony.
ANALYSIS
7. D.R.E. 103(a)(1) provides that a party may claim error in admitting
evidence only if the party (A) timely objects or moves to strike, and (B) states the
specific ground, unless apparent from context.

1
D.R.E. 702, in relevant part, provides that “a witness who is qualified as an expert by
knowledge, skill, experience, training, or education may testify in the form of an opinion or
otherwise if: (a) the expert’s scientific, technical, or other specialized knowledge will help the
trier of fact to understand the evidence or to determine a fact in issue; (b) the testimony is based
on sufficient facts or data; (c) the testimony is the product of reliable principles and methods; and
(d) the expert has reliably applied the principles and methods to the facts of the case.”
2
See Daubert v. Merrell Dow Pharms., Inc., 509 U.S. 579, 589–95 (1993) (holding that Federal
Rule of Evidence 702 requires trial judges to act as gatekeepers to ensure expert testimony is
both reliable and relevant); see also In re Zantac (Ranitidine) Litig., 2025 WL 1903760, at *8
(Del. July 10, 2025) (“D.R.E. 702 governs the admissibility of expert opinion testimony . . .
Delaware has adopted Daubert, and a well-developed body of caselaw explains how D.R.E. 702
and Daubert are to be applied.”).
2
8. Objections to expert testimony under Daubert and D.R.E. 702 must be
raised before or during the hearing when the testimony is offered. Failure to timely
object waives the right to challenge admissibility. 3
9. Defendant’s Motion in Limine seeks to exclude Dr. Mechanick’s expert
testimony seven months after the testimony was received and admitted into evidence.
At no point prior to or during the December 2024 competency hearing did Defendant
object to Dr. Mechanick’s qualifications, methodology, or conclusions.
10. Delaware requires that Daubert-based objections be raised before or
during the hearing.4 Defendant’s delay on raising his challenge defeats the purpose
of Daubert, which is to allow courts to rule on admissibility before unreliable
evidence reaches the factfinder. 5
11. Because Defendant failed to timely object, any challenge to Dr.
Mechanick’s qualifications or opinions has been waived. Having already cross-
examined Dr. Mechanick during the competency hearing, Defendant cannot now
retroactively exclude evidence that was properly admitted months ago.
12. Accordingly, Defendant’s Motion in Limine to exclude Dr.
Mechanick’s testimony is procedurally barred and must be denied.
13. For the foregoing reasons, Defendant’s motion is DENIED.

3
See Beard Rsch. v. Kates, 8 A.3d 573, 593 (Del. Ch. 2010), aff’d sub nom. ASDI, Inc. v. Beard
Rsch., Inc., 11 A.3d 749 (Del. 2010) (holding that “a party challenging expert evidence on
Daubert grounds must do so in a timely fashion” and finding that defendants waived their
Daubert challenge by failing to object during pretrial proceedings or trial).
4
Id.
5
See Daubert, 509 U.S. at 589.
3
IT IS SO ORDERED.

NEP/tls
oc: Prothonotary
cc: George Curtis, Pro Se, JTVCC
Erik C. Towne, DAG
Dennis Kelleher, DAG

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