How to File a Motion to Compel in Colorado

The Court’s Authority Comes From a Source, Not From Fairness

A Colorado court cannot order discovery simply because the material would help the defense. Courts have “no freestanding authority to grant criminal discovery beyond what is authorized by the Constitution, the rules, or by statute.” People v. Castorena, 2026 CO 2, ¶ 14, 582 P.3d 459, 464 (quoting People v. Silva-Jaquez, 2025 CO 11, ¶ 19, 564 P.3d 650, 654), quoted in Bell, 2026 CO 28, ¶ 12.

A motion to compel that argues only that the material is important will lose. A motion that identifies the rule, the statute, or the constitutional provision requiring disclosure, and then shows the prosecution has not complied with it, is the one that works.

Crim. P. 16 Applies Before Trial

The rule is titled “Discovery and Procedure Before Trial,” and the supreme court has confirmed it “expressly applies only before trial.” Bell, 2026 CO 28, ¶ 13.

Discovery under the rule covers the basic material a criminal case is built on. In Bell the court described it as reaching “a broad range of police reports, witness statements, photos, and forensic test results,” citing Crim. P. 16(I)(a)(1), and called it “the basic fund of information on which charges are based and strategic decisions are made.” 2026 CO 28, ¶ 5.

This Is Not Civil Discovery

Material describing a motion to compel in terms of interrogatories, requests for production, and depositions is describing a civil case. Colorado criminal cases do not run on those devices, and a criminal defendant who prepares a motion built on them is preparing the wrong motion. Civil discovery disputes are governed by the Colorado Rules of Civil Procedure; criminal discovery is governed by Crim. P. 16.

The practical difference matters. Much of what the prosecution owes under Crim. P. 16 is owed without anyone asking for it, so the usual problem is not that a request was refused. The usual problem is that material the rule already required has not arrived.

After Conviction the Rules Change

Because Crim. P. 16 applies before trial, it does not reach postconviction proceedings, and neither Crim. P. 35 nor C.R.S. 18-1-410 provides for discovery there. The supreme court has described that silence as creating “a limitation, not an opportunity.” Bell, 2026 CO 28, ¶ 14 (quoting Silva-Jaquez, ¶ 26, 564 P.3d at 655).

Bell itself created a narrow path through that. Where an indigent defendant asserts specific errors, along with specific facts in the requested discovery that would substantiate those errors, “a postconviction court should order the prosecution to disclose Crim. P. 16 discovery materials to protect the defendant’s due process rights.” 2026 CO 28, ¶ 32. Bare assertions of error are not enough. Id. ¶ 30.

The court also rejected the argument that postconviction counsel should be routed to an open records request instead. Under the Colorado Criminal Justice Records Act the custodian has discretion to release all, some, or none of the records, and what is released may be redacted, so counsel “need not resort to the CCJRA to obtain a copy of constitutionally essential pretrial discovery.” Id. ¶¶ 38 to 39. Worth knowing if a district attorney’s office asks you to pay for what the rule already requires: the CCJRA fee provisions “shall not apply to discovery materials that a criminal justice agency is required to provide in a criminal case pursuant to [Crim. P. 16].” C.R.S. 24-72-306(3), quoted in Bell ¶ 37.

What a Motion Needs to Do

A motion to compel in a Colorado criminal case has to establish three things.

The obligation. Name the provision that requires disclosure, whether that is a subsection of Crim. P. 16, a statute, or the constitutional disclosure duty. This is the step Castorena and Bell make unavoidable.

The gap. Identify what is missing with enough specificity that the court can order something concrete. “All exculpatory material” is not an order a court can enforce. A named report, a named test, a named witness statement is.

Why it matters. Connect the missing material to a decision in the case: a suppression issue, an identification, an expert’s methodology, a defense that cannot be investigated without it. In the postconviction setting Bell makes this a requirement rather than a courtesy.

Timing

There is no single statewide deadline. Discovery deadlines in a criminal case come from the court’s own scheduling order and from the trial date, and they vary by judicial district and by judge. The deadline that governs your case is in your case file, not in a general article, and a motion filed after the material stopped being useful gets a different reception than one filed while there is still time to act on what it produces.

When to Get a Lawyer Involved

A person representing himself can file a motion to compel. Whether that is a good use of the opportunity is a different question. The motion turns on identifying the right source of the disclosure obligation and framing the request narrowly enough for a court to grant it, and a motion that misses on either point can make the second attempt harder.

If the prosecution in your case has not produced discovery you believe you are entitled to, the attorneys at Masterson Hall can review what has been disclosed against what the rule requires. Contact us to discuss your case.

Frequently Asked Questions

What rule governs a motion to compel in a Colorado criminal case?

Crim. P. 16. The Colorado Supreme Court has described it as “the primary source of a Colorado trial court’s authority to order discovery in criminal cases.” In re People v. Bell, 2026 CO 28, ¶ 13.

Can a judge order discovery just because it seems fair?

No. Colorado courts have “no freestanding authority to grant criminal discovery beyond what is authorized by the Constitution, the rules, or by statute.” Castorena, 2026 CO 2, ¶ 14, 582 P.3d at 464. The motion has to point at a source.

Does Crim. P. 16 apply after a conviction?

No. It applies before trial only. Bell holds that a postconviction court should nonetheless order the prosecution to disclose Crim. P. 16 materials where an indigent defendant asserts specific errors along with specific facts that would substantiate them. 2026 CO 28, ¶¶ 13, 32.

Can the district attorney charge me for discovery?

Not for what Crim. P. 16 requires. The Colorado Criminal Justice Records Act’s fee provisions “shall not apply to discovery materials that a criminal justice agency is required to provide in a criminal case pursuant to [Crim. P. 16].” C.R.S. 24-72-306(3).

What happens if the prosecution ignores an order to produce?

The court that issued the order enforces it, and the available responses run from a further order through sanctions. What is appropriate depends on what was withheld, when, and what it cost the defense, which is why the motion should make the prejudice concrete rather than general.