Crim. P. 16(I)(c)(2) Nonparty Discovery Orders Require Personal Jurisdiction by Proper Service

1. Introduction

This original proceeding under C.A.R. 21 arises out of the retrial posture of Juan Manuel Castorena’s first-degree murder prosecution in the Seventeenth Judicial District. After Castorena’s original conviction was vacated and remanded for a new trial by the court of appeals (People v. Castorena, No. 22CA1591, 2024 WL 4576501 (Colo.App. Oct. 24, 2024)), a separate statewide development complicated discovery: allegations of misconduct by former CBI forensic scientist Yvonne “Missy” Woods in DNA testing.

Woods’s alleged misconduct spawned two parallel governmental tracks: (i) CBI internal investigations into anomalies in her lab work, and (ii) an ongoing criminal prosecution of Woods by the First Judicial District Attorney’s Office (“the 1st DA”). Because Woods testified in Castorena’s first trial and handled DNA evidence in his case, Castorena sought broad access to Woods-related investigative materials for use in his retrial.

The core issue before the Colorado Supreme Court was narrow but consequential: whether a trial court may, under Crim. P. 16(I)(c)(2), order a nonparty governmental entity to disclose discovery to a defendant—and if so, what jurisdictional prerequisites must be satisfied to make such an order enforceable.

2. Summary of the Opinion

The Court held that Crim. P. 16(I)(c)(2) permits trial courts to issue “suitable subpoenas or orders” compelling “other governmental personnel” (including a nonparty district attorney’s office) to make discoverable materials available to the defense when the prosecuting attorney’s diligent good-faith efforts fail. However, such an order is enforceable only if the court first obtains personal jurisdiction over the nonparty. Because Rule 16 contains no service-of-process mechanism, personal jurisdiction must be secured via proper service under Crim. P. 17 (for subpoenas) or, for Rule 16 “orders,” through C.R.C.P. 4 by operation of Crim. P. 57(b). On the facts, emailing and mailing the order did not constitute valid service, and actual notice did not cure the defect. Accordingly, the discovery order was void for lack of personal jurisdiction, the rule-to-show-cause was made absolute, the order vacated, and the case remanded.

3. Analysis

A. Precedents Cited (and How They Shaped the Holding)

1) Original jurisdiction and review posture (C.A.R. 21)

• People v. Maes, 2024 CO 15: Reinforced that C.A.R. 21 is extraordinary and discretionary; the Court used it as the entry point to reach the jurisdiction question.
• People v. Owens, 2018 CO 55: Quoted in Maes for the “extraordinary remedy” framing; supports limiting C.A.R. 21 to issues lacking an adequate appellate remedy.
• Griffith v. SSC Pueblo Belmont Operating Co., 2016 CO 60M, and Solliday v. Dist. Ct., 313 P.2d 1000 (Colo. 1957): Grounded the Court’s willingness to address personal jurisdiction immediately because forcing a nonparty to litigate without jurisdiction is an irreparable harm not adequately cured by later appeal.
• People v. Chavez, 2016 CO 20: Provided the de novo standard for whether the trial court exceeded legal authority—critical because the question turned on rule interpretation and jurisdictional prerequisites.

2) Discovery is bounded by Constitution, rule, or statute

• People v. Silva-Jaquez, 2025 CO 11, and People v. Kilgore, 2020 CO 6: The Court relied heavily on these decisions to reject any notion of “freestanding” discovery power in criminal cases and to police the boundary between permissible case management and impermissible expansion of Rule 16.
  • Kilgore supplied the interpretive principle that an omission in Rule 16 is a limitation, not a license—an anchor for the Court’s conclusion that Rule 16 alone cannot supply service-of-process procedures.
  • Silva-Jaquez reinforced that inherent authority cannot be used to exceed Rule 16’s contours; this was used to rebut Castorena’s “inherent authority” argument for enforcing nonparty disclosure.
• People in Int. of E.G., 2016 CO 19: Used to describe the Brady-type disclosure obligation within Rule 16 and to emphasize that defendants have no broad right to deploy court power as a general investigative tool.
• People v. Dye, 2024 CO 2: Cited for the proposition that trial courts may not “surpass the limits” of Crim. P. 16—supporting the Court’s insistence that any Rule 16(I)(c)(2) “orders” must be “suitable” and bounded.

3) The prosecutor’s “possession or control” and the non-monolithic nature of DAs

• People v. Taylor, 732 P.2d 1172 (Colo. 1987): Supported the structural point that each district attorney’s authority is geographically bounded and institutionally distinct—undercutting any claim that the 1st DA’s files are within the 17th DA’s “possession or control.”

4) Jurisdiction—subject matter vs. personal jurisdiction, and the centrality of service

• In re People in Int. of S.A., 2022 CO 27, and People v. C.O., 2017 CO 105: Provided the definitional backbone distinguishing subject matter jurisdiction from personal jurisdiction and supplied the premise that broad criminal subject matter jurisdiction does not automatically extend to nonparties.
• People v. Sprinkle, 2021 CO 60, and Strepka v. People, 2021 CO 58: Confirmed the breadth of district courts’ subject matter jurisdiction while reinforcing that this breadth does not resolve personal jurisdiction over nonparties.
• United Bank of Boulder, N.A. v. Buchanan, 836 P.2d 473 (Colo. App. 1992), and ReMine ex rel. Liley v. Dist. Ct., 709 P.2d 1379 (Colo. 1985): Deployed to underscore the doctrinal separation between general subject matter jurisdiction and the need to obtain personal jurisdiction through proper means.
• Sebastian Holdings, Inc. v. Johansson, 2025 COA 60: A key contemporary citation for the proposition that valid service of process is a prerequisite to personal jurisdiction; it helped the Court connect “service mechanics” to “jurisdictional validity.”
• Gilford v. People, 2 P.3d 120 (Colo. 2000): Supported the notion that defects in personal jurisdiction often arise from departures concerning notice and service of process—reinforcing the Court’s focus on formal service requirements.
• Minshall v. Johnston, 2018 COA 44, Colorow Health Care, LLC v. Fischer, 2018 CO 52M: Used for the strict-compliance consequences—if service fails to conform to C.R.C.P. 4, the court lacks personal jurisdiction and any resulting order/judgment is void.
• Ruhrgas AG v. Marathon Oil Co., 526 U.S. 574 (1999): Quoted via S.A. to emphasize that without personal jurisdiction a court is powerless to proceed as to that party—framing invalid service as a structural defect, not a mere technicality.

5) Rule 17 limitations and the “Spykstra factors”

• People v. Baltazar, 241 P.3d 941 (Colo. 2010), and People v. Spykstra, 234 P.3d 662 (Colo. 2010): Central to the Court’s insistence that subpoenas (and by extension Rule 16(I)(c)(2) “orders”) cannot be used as investigative fishing expeditions, and that a defendant seeking nonparty production must satisfy the five-factor Spykstra showing.
• People v. Arellano-Avila, 20 P.3d 1191 (Colo. 2001): Used by analogy: the “subpoena requirement” constrains court power; the Court relied on this reasoning to support the service-and-jurisdiction prerequisite for compelling nonparty compliance.
• People v. Baltazar and People v. Spykstra were also reinforced by secondary authority (LaFave) and by constitutional baseline references: United States v. Bagley, 473 U.S. 667 (1985), cited via E.G. for the material-exculpatory evidence principle (Brady lineage).

6) Interpreting “orders” in Rule 16(I)(c)(2) and avoiding surplusage

• People v. Rodriguez-Morelos, 2025 CO 2: Cited for the canon that courts should avoid rendering statutory/rule terms superfluous; this drove the Court to find a service mechanism for “orders” distinct from “subpoenas.”
• Hobbs v. City of Salida, 2025 CO 50: Used for the series-modifier canon (“suitable” modifies both “subpoenas” and “orders”), supporting the Court’s insistence that Rule 16 orders must be “suitable” in the same limited sense as Rule 17 subpoenas.

7) Notice vs. service; special appearance and no waiver

• Weber v. Williams, 324 P.2d 365 (Colo. 1958): Anchored the proposition that knowledge of an order does not substitute for valid service of process.
• Delta Cnty. Mem'l Hosp. v. Indus. Claim Appeals Off., 2021 COA 84: Supported that a nonparty may appear specially to contest personal jurisdiction without waiving the objection or conferring jurisdiction.
• Nickerson v. Network Sols., LLC, 2014 CO 79: Reinforced the “void judgment/order” consequence when personal jurisdiction is absent.
• Additional waiver/preservation authorities appear in the opinion’s notes: James v. James, 262 P. 925 (Colo. 1927), and City of Thornton v. Pub. Utils. Comm'n, 391 P.2d 374 (Colo. 1964), invoked to explain why the 1st DA’s motion functionally preserved a personal-jurisdiction objection even without using that phrase.

B. Legal Reasoning

1) Rule 16 allows nonparty governmental discovery—conditionally

The Court’s reasoning proceeds in deliberate steps. First, it cabins the prosecutorial “possession or control” concept under Crim. P. 16(I)(a)(3): the 1st DA was not part of the 17th DA’s staff and did not participate in the investigation or evaluation of Castorena’s case. By drawing on constitutional structure and People v. Taylor, the Court rejects any attempt to treat district attorneys as a unified statewide prosecution team for Rule 16 purposes.

2) The “other governmental personnel” pathway and the jurisdictional condition

Second, the Court accepts the parties’ agreement that the 1st DA qualifies as “other governmental personnel” under Crim. P. 16(I)(c). That concession, however, does not resolve the rule’s explicit condition: the court “shall issue suitable subpoenas or orders” only if such personnel are “subject to the jurisdiction of the court.”

The Court treats “jurisdiction” here as including personal jurisdiction. It distinguishes subject matter jurisdiction (uncontested and broad) from personal jurisdiction over a specific entity. Because the 1st DA was a nonparty, personal jurisdiction could not be presumed.

3) Rule 16’s silence on service is a hard stop; the gap is filled via other rules

Third, the Court holds that Rule 16’s lack of service provisions is not an invitation to ad hoc methods. Drawing from People v. Kilgore, it reasons that omissions in Rule 16 limit authority. The Court then uses the “in pari materia” approach in People v. Arellano-Avila and Crim. P. 2 to read the criminal rules together:

• For “subpoenas,” Crim. P. 17 supplies service requirements; service under Rule 17 can establish personal jurisdiction to compel compliance.
• For “orders,” because Crim. P. 49(c) does not address service on nonparties, Crim. P. 57(b) directs courts to look to civil rules. The Court selects C.R.C.P. 4 as the governing service-of-process mechanism for nonparty service of a Rule 16(I)(c)(2) “order.”

4) “Suitable” applies to both subpoenas and orders; discovery limits still govern

Fourth, the Court stresses that even properly served orders must be “suitable.” Through Hobbs v. City of Salida and the broader subpoena jurisprudence (People v. Spykstra, People v. Baltazar), the Court effectively aligns Rule 16(I)(c)(2) “orders” with the same anti-fishing-expedition constraints that apply to subpoenas. This is reinforced by the Court’s refusal to allow “inherent authority” to expand criminal discovery beyond Rule 16 (People v. Silva-Jaquez; People v. Kilgore).

5) Application: actual notice is not service; special appearance does not waive

Finally, applying these principles, the Court finds that defense counsel’s email and mail transmission of the order did not satisfy C.R.C.P. 4’s requirements for service of process. Under Weber v. Williams, actual knowledge does not substitute for valid service. Under Delta Cnty. Mem'l Hosp. v. Indus. Claim Appeals Off., a special appearance to contest jurisdiction does not confer personal jurisdiction. Without personal jurisdiction, the order is void (Nickerson v. Network Sols., LLC).

6) The dissent’s waiver theory and the majority’s strict-service approach

Justice Gabriel’s dissent frames the dispute as one of waiver: because the 1st DA did not specifically object to the manner of service (email/mail) and received the order, it should be deemed to have waived any service defect—making the majority’s remedy a “form over substance” delay.

The majority’s response is implicit but firm: personal jurisdiction over a nonparty requires valid service, and defects in the jurisdictional predicate render the order void regardless of actual notice. The majority also points to the functional substance of the 1st DA’s special appearance as preserving the jurisdictional issue (see the opinion’s note 2 and its references to waiver/preservation principles).

C. Impact

1) Practical rule for nonparty governmental discovery in criminal cases

The decision creates a clear procedural roadmap (and a trap for the unwary) for defendants seeking discovery from nonparty governmental actors under Crim. P. 16(I)(c)(2):

• Authority exists to compel “other governmental personnel,” including a separate district attorney’s office, via “subpoenas or orders.”
• Enforceability depends on personal jurisdiction over the nonparty.
• Personal jurisdiction requires formal service: Crim. P. 17 for subpoenas; C.R.C.P. 4 for Rule 16 “orders” (via Crim. P. 57(b)).
• Scope remains limited: production mechanisms cannot become discovery expansions; Spykstra-style constraints govern “suitability.”

2) Systemic effects in statewide forensic-misconduct litigation

Although formally procedural, the holding is likely to shape the pace and uniformity of Woods-related discovery across districts. By requiring strict service compliance and reaffirming “suitable” limitations, the Court gives nonparty agencies and offices a robust procedural basis to resist or narrow disclosure unless defendants comply precisely and justify the request under constrained standards.

3) Institutional boundaries between district attorneys’ offices

The opinion also fortifies the institutional separation among Colorado’s district attorneys for discovery purposes. Defendants (and trial courts) cannot treat one DA’s investigative file as within another DA’s “possession or control” absent participation in the same investigation or reporting relationship as defined by Crim. P. 16(I)(a)(3). This will matter beyond the Woods context, particularly for multi-district investigations and parallel prosecutions.

4) Likely future litigation: waiver, acceptance of service, and the mechanics of serving government offices

Justice Gabriel’s dissent highlights a predictable line of future disputes: whether and how a nonparty governmental office may “accept service” informally, and whether failure to raise a service-method objection should forfeit the issue. The majority’s strict approach suggests that litigants should not assume waiver from silence; prudent practice will be to obtain unequivocal acceptance of service in a form recognized by rule, or to complete formal C.R.C.P. 4 service.

4. Complex Concepts Simplified

• Crim. P. 16 vs. civil discovery: Criminal discovery is narrow and rule-bound; courts cannot order broad “relevance” discovery as in civil cases. The Court reiterates: no discovery unless authorized by the Constitution, a rule, or a statute.
• “Possession or control” (Crim. P. 16(I)(a)): Material is in a prosecutor’s control when held by the prosecutor’s staff or investigative participants who report to the prosecutor. A different district attorney’s office usually is not in that chain.
• “Other governmental personnel” (Crim. P. 16(I)(c)): Government actors outside the prosecution team (e.g., separate agencies or offices) who possess potentially discoverable material. The rule lets courts facilitate access—if jurisdiction exists.
• Subject matter jurisdiction vs. personal jurisdiction:
  • Subject matter jurisdiction = the court’s power to hear the type of case (criminal cases generally).
  • Personal jurisdiction = the court’s power over a specific person or entity. Nonparties are not automatically subject to it.
• Service of process: The formal delivery method required by rules to bring a person/entity under a court’s power. Actual notice (learning about the order) is not always enough.
• “Void” order: If a court acts without personal jurisdiction, the order is treated as having no legal force from the start.
• Spykstra factors: A five-part test to prevent subpoenas (and now, functionally, Rule 16 orders) from becoming fishing expeditions; the requesting party must show the materials likely exist, are relevant and evidentiary, cannot be obtained otherwise, are needed to avoid trial delay, and the request is in good faith.

5. Conclusion

In re the PEOPLE v. CASTORENA establishes a procedural rule with immediate operational consequences: Colorado trial courts may use Crim. P. 16(I)(c)(2) to compel discovery from nonparty governmental personnel, but only after obtaining personal jurisdiction through proper service—Crim. P. 17 for subpoenas, and C.R.C.P. 4 (via Crim. P. 57(b)) for Rule 16 “orders.” The Court simultaneously reinforces the limited nature of criminal discovery, rejects inherent-authority end runs around Rule 16, and signals that “suitability” constraints—exemplified by People v. Spykstra—govern both subpoenas and orders. The dissent’s waiver-focused critique underscores that future litigation may test the line between strict jurisdictional formality and practical notice, but the majority’s directive is unmistakable: without valid service, a nonparty discovery order is void.