Plain-Error Barriers to Delegation and Explanation Challenges in Revocation Sentencing

1. Introduction

In United States v. Mertlich (10th Cir. Aug. 5, 2026) (unpublished Order and Judgment), the Tenth Circuit dismissed an appeal from a supervised-release revocation sentence after defense counsel filed an Anders brief and moved to withdraw. The defendant, Logan Michael Mertlich, had originally pleaded guilty to transportation of explosive materials and later admitted violating supervised-release conditions. At revocation, the district court imposed a five-month prison term and 31 months of supervised release, reimposing several “special conditions,” including drug/alcohol testing and substance-abuse and mental-health treatment “as directed by the U.S. Probation Office.”

The appeal presented two potential issues: (1) whether the “as directed” conditions impermissibly delegated sentencing authority to probation (constitutionally and/or statutorily), and (2) whether the district court erred by not providing individualized reasons for reimposing each special condition at revocation. Because no objections were raised below, both issues were analyzed under plain-error review.

2. Summary of the Opinion

The Tenth Circuit concluded the appeal was “wholly frivolous,” dismissed it, and granted counsel’s motion to withdraw. On delegation, the court held there was no plain constitutional error under existing Tenth Circuit precedent. It acknowledged a statutory delegation problem under 18 U.S.C. § 3583(d) (as interpreted by circuit precedent) with respect to the drug-testing condition, but found no plain error because the record did not show the error affected the defendant’s substantial rights. On the explanation issue, the court held any error could not be “plain” because the Tenth Circuit has not decided whether individualized or generalized justifications are required when special conditions are reimposed at revocation.

3. Analysis

A. Precedents Cited

  • Anders v. California, 386 U.S. 738, 744 (1967)
    The foundation for the court’s procedural posture: if counsel conscientiously reviews the record and finds the appeal “wholly frivolous,” counsel may seek to withdraw and must identify anything in the record that might arguably support the appeal. The panel then independently reviews the record.
  • United States v. Calderon, 428 F.3d 928, 930 (10th Cir. 2005)
    Cited for the Tenth Circuit’s practice when an appeal is deemed frivolous after an Anders submission: dismissal and permission for counsel to withdraw.
  • United States v. Gonzalez-Huerta, 403 F.3d 727, 732 (10th Cir. 2005)
    Provides the four-part plain-error framework: (1) error, (2) plainness, (3) effect on substantial rights, and (4) impact on the fairness, integrity, or public reputation of judicial proceedings. This standard drove the outcome because the defendant had not objected below.
  • United States v. Miller, 978 F.3d 746, 757-63 (10th Cir. 2020)
    The central precedent for both constitutional and statutory delegation analysis.
    • Constitutionally, Miller upheld allowing probation to determine the number of drug tests (not an Article III violation) in the manner described by the court in this case.
    • Statutorily, Miller interpreted 18 U.S.C. § 3583(d)’s “as determined by the court” language to prohibit delegating to probation the maximum number of non-treatment-program drug tests. Mertlich followed that reading to find a statutory error in the drug-testing condition.
    • On plain error prong three, Miller also held that without record evidence about what the district court would have ordered, a defendant cannot show he is “worse off” due to delegation—an evidentiary gap mirrored in Mertlich.
  • United States v. Bear, 769 F.3d 1221, 1230-31 (10th Cir. 2014)
    Supplies the delegation test: permissible delegations involve “ministerial acts or support services,” while impermissible delegations allow probation to decide the “nature or extent” of punishment. It also supports the proposition that “as directed” language often assigns probation a role in selecting an appropriate treatment plan rather than imposing a new liberty-restricting condition.
  • United States v. Mike, 632 F.3d 686, 695 (10th Cir. 2011)
    Quoted (via Bear) for the ministerial-versus-punitive delegation distinction that frames the Article III inquiry.
  • United States v. Padilla, 415 F.3d 211, 221 (1st Cir. 2005)
    Cited (via Miller) for the “worse off” concept used in assessing whether a delegation error affected substantial rights. The reliance underscores that the third prong of plain error requires a concrete showing of prejudice.
  • United States v. Henry, 979 F.3d 1265, 1268-70 (10th Cir. 2020)
    Addresses the duty to provide reasons for imposing special conditions, but notes the Tenth Circuit had not decided whether that duty applies when special conditions are reimposed at revocation. Mertlich relies on this uncertainty to reject “plainness.”
  • United States v. Smith, 606 F.3d 1270, 1282 (10th Cir. 2010)
    Cited (via Henry) for the general rule that district courts must provide at least generalized reasons for imposing special conditions of supervised release.
  • United States v. Gonzalez-Coronado, 419 F.3d 1090, 1095 (10th Cir. 2005)
    Cited for the proposition that Guidelines calculations are reviewed using the Guidelines in effect at the time of sentencing. While not dispositive, it supports the panel’s treatment of the applicable U.S.S.G. manual.

B. Legal Reasoning

1) Plain-error review controlled the appeal

Because Mertlich did not object to the conditions at sentencing, the panel applied the Gonzalez-Huerta four-part plain-error test. This is outcome-determinative in two ways: (i) even an identified legal mistake may not lead to reversal without a showing of prejudice (prong three), and (ii) unsettled law generally prevents a finding that an error was “plain” (prong two).

2) Delegation: constitutional vs. statutory constraints

The opinion separates delegation into two distinct inquiries:

  • Article III (constitutional) delegation. Using Bear and Mike, the panel asked whether probation was given discretion over the “nature or extent” of punishment (impermissible) versus implementing details/ministerial support (permissible), focusing on the liberty interest at stake. Relying on Miller, the panel held that allowing probation to direct drug testing logistics was not plainly unconstitutional. It extended the same reasoning to substance-abuse and mental-health treatment “as directed” language, treating probation’s role as selecting/arranging a treatment plan rather than expanding punishment.
  • Statutory delegation under 18 U.S.C. § 3583(d). Here the panel acknowledged a statutory problem: § 3583(d) authorizes drug testing “(as determined by the court),” and under Miller courts may not delegate to probation the maximum number of non-treatment tests. The condition requiring testing “as directed by the U.S. Probation Office” therefore “plainly” conflicted with § 3583(d) as interpreted by binding circuit precedent.

    However, the panel—again tracking Miller—held that prong three was not met. The record contained no basis to determine what maximum number of tests the district judge would have set. Without that counterfactual, the defendant could not show he was “worse off” due to the delegation, as required to prove an effect on substantial rights.

3) Explanations for reimposed special conditions at revocation

The panel recognized the general Tenth Circuit requirement that courts provide at least generalized reasons for special conditions (Henry quoting Smith). But it emphasized the open question identified in Henry: whether that requirement applies when a court reimposes conditions at a revocation sentencing. Because the law is unsettled in the circuit, any error could not be “plain,” foreclosing relief under prong two.

C. Impact

Although designated as nonprecedential, the decision illustrates two practical constraints on revocation appeals in the Tenth Circuit:

  • Delegation challenges are easiest to “win” on prong one (error) but hard to convert into relief on prong three (prejudice) when the record does not show what the court would have ordered absent the delegation.
  • Explanation challenges to reimposed conditions face a “plainness” barrier until the Tenth Circuit squarely resolves whether revocation reimpositions require the same on-the-record justification as initial impositions. As long as Henry leaves that issue open, defendants who did not object below will struggle to obtain reversal on appeal.

For district courts and probation practice, the opinion reinforces that drug-testing conditions should be drafted to comply with § 3583(d) by ensuring the court, not probation, sets any maximum number of non-treatment drug tests—especially because the statutory issue is “plain” under circuit law even if relief may be denied on plain-error prejudice grounds.

4. Complex Concepts Simplified

  • Anders brief: A filing by appointed defense counsel stating that, after a careful review, there are no nonfrivolous appellate issues; it triggers the appellate court’s independent review of the record.
  • Supervised release / revocation: A period of court-ordered monitoring after prison. If conditions are violated, the court may revoke supervision and impose additional prison and/or a new term of supervision.
  • Special conditions: Tailored requirements beyond standard supervision rules (e.g., treatment, testing).
  • Delegation: The extent to which a court may assign probation a role in implementing conditions. Constitutionally, probation may handle details (ministerial tasks) but cannot decide the “nature or extent” of punishment. Statutorily, Congress sometimes requires that specific decisions be made by the court itself (e.g., certain drug-testing determinations).
  • Plain error: A demanding appellate standard for issues not raised below; even clear legal error may not lead to reversal without a showing of prejudice and serious impact on the judicial process.
  • Substantial rights (plain error prong three): Typically means the error likely mattered to the outcome; here, the court required some basis to conclude the delegation made the defendant concretely “worse off.”

5. Conclusion

United States v. Mertlich underscores that, in the Tenth Circuit, unpreserved challenges to supervised-release conditions at revocation are often defeated by plain-error doctrine. Even where a drug-testing condition appears statutorily defective under United States v. Miller, the absence of record evidence showing prejudice can be fatal. And where the circuit has not resolved whether courts must justify reimposed special conditions at revocation, defendants will generally be unable to establish that any lack of explanation was “plain” error. In that sense, the decision’s practical lesson is procedural: objections and record development at sentencing frequently determine whether supervision-condition issues are appealable in a meaningful way.