Rory Reilly filed a postconviction action challenging the Iowa Department of Corrections’ (IDOC) revocation of his ability to accrue earned time because he was removed from a sex offender treatment program (SOTP). While serving his sentence for a lascivious acts conviction, IDOC required Reilly to participate in SOTP. While participating in the program, Reilly failed a polygraph examination and was removed from SOTP, leading to a determination that he was ineligible to accrue further earned time. We hold IDOC’s removal of Reilly from SOTP violated his due process rights. We also hold IDOC is not prohibited from using polygraph examinations within SOTP. We sustain the writ of certiorari.
I. Background Facts and Proceedings.
Rory Reilly was convicted of lascivious acts with a child under Iowa Code section 709.8 (1999) based on an offense that took place in March, 2001. He began serving his sentence in December, 2005. IDOC determined Reilly was required to participate in SOTP. As part of the treatment, IDOC administered a specific issue polygraph examination to Reilly because Reilly’s account of his sexual offense differed in some way from his victim’s account. *493 Reilly failed the polygraph examination, and IDOC removed him from SOTP because of the failed polygraph test.
Once removed from SOTP, IDOC stopped Reilly’s ability to earn time to reduce his sentence pursuant to Iowa Code section 903A.2 (Supp.2005). Prior to his removal, Reilly’s tentative discharge date was March 20, 2008. After his removal, Reilly’s tentative discharge date was June 13, 2010. Reilly was later reinstated into SOTP, and his discharge date was changed to May 27, 2008. Therefore, his temporary removal from SOTP added approximately two months to Reilly’s sentence. 1
Reilly appealed his removal from SOTP to the deputy warden, and his appeal was denied. He then filed a postconviction petition under Iowa Code section 822.2(1)(f), 2 or in the alternative section 822.2(1)(e) or Iowa Code chapter 17A. The district court determined review was appropriate under Iowa Code section 822.2(1)(f) and denied Reilly’s petition on the merits. Reilly appealed.
II. Scope of Review.
Generally, postconvietion relief proceedings are reviewed for correction of errors at law.
DeVoss v. State,
III. Merits.
As set forth in the companion case,
Dykstra v. Iowa District Court,
[A]n inmate required to participate in a sex offender treatment program shall not be eligible for a reduction of sentence unless the inmate participates in and completes a sex offender treatment program established by the director.
Iowa Code § 903A.2(1)(a) (Supp.2005). IDOC therefore stopped Reilly’s ability to accrue earned time when he was removed from SOTP.
Reilly raises four arguments in his post-conviction petition. First, Reilly argues IDOC’s application of the 2005 amendment to him violated the Ex Post Facto Clauses of the Iowa and United States Constitutions because he committed the crime pri- or to the effective date of the 2005 amendment. Second, Reilly argues the 2005 amendment cannot be read retroactively to apply to his sentence. Third, Reilly argues his due process rights were violated. *494 Finally, Reilly argues it was improper for IDOC to remove him from SOTP and also stop his ability to earn time based on a failed polygraph examination.
A. Ex Post Facto Clause. This court has previously held that IDOC’s application of amended Iowa Code section 903A.2 to inmates whose crimes occurred prior to January 1, 2001, the effective date of the 2001 amendment to section 903A.2, violates the Ex Post Facto Clause.
State v. Iowa Dist. Ct., 759
N.W.2d 793, 802 (Iowa 2009). This court held in
Holm v. Iowa District Court,
B. Retroactivity. Reilly argues section 903A.2, as amended in 2005, cannot be construed to apply retroactively to individuals whose crimes took place after enactment of the 2001 amendment but before enactment of the 2005 amendment. We reject this argument, as we did in
Holm,
because the 2005 amendment did not change the existing law, but merely clarified existing law.
See Holm,
C. Due Process. Reilly argues he was denied due process under the Iowa and United States Constitutions when he was removed from SOTP and his ability to accrue earned time was stopped. Although in the past we have interpreted the United States and Iowa Constitutions “in a similar fashion,”
State v. Seering,
Reilly was removed from SOTP because his account of his sexual crime differed from that of the victim, and he failed a polygraph examination on the specifics of that crime. Reilly contends that because he has a liberty interest in his ability to accrue earned time,
see Holm,
“[T]he first step in any procedural due process inquiry is the determination of ‘whether a protected liberty or property interest is involved.’ ”
Seering,
We previously recognized a liberty interest in an inmate’s ability to accrue earned time.
See Holm,
When an inmate’s liberty interest is affected, the court must analyze what procedures are necessary to protect that right. While some circumstances, such as the initial classification of prisoners at issue in Dykstra, may require that the protections identified in Wolff be implemented, not all IDOC decisions which implicate a liberty interest require such protections. The United States Supreme Court has recognized that
[b]ecause of the broad spectrum of concerns to which the term [due process] must apply, flexibility is necessary to gear the process to the particular need; the quantum and quality of the process due in a particular situation depend upon the need to serve the purpose of minimizing the risk of error.
Greenholtz v. Inmates of Neb. Penal & Corr. Complex,
The
Greenholtz
court held that procedures employed by the Nebraska parole board for initial parole determinations did not violate due process even though they did not meet the requirements of
Wolff.
3
Id.
at 14-16,
Generally, to determine what process is due, this court analyzes:
“-‘First, the private interest that will be affected by the official action; second, the risk of an erroneous deprivation of such interest through the procedures used, and the probable value, if any, of additional or substitute procedural safeguards; and finally, the Government’s interest, including the function involved and the fiscal and administrative burdens that the additional or substitute procedural requirements would entail.’ ”
Seering,
Although removal from SOTP implicates a liberty interest, it is a lesser interest than the initial classification decision requiring an inmate to participate in SOTP. The removal decision is a discretionary decision by prison officials based on any number of considerations whereas the initial inmate classification addressed in
Dykstra
amounts to a specific factual determination that the inmate has engaged in sexually inappropriate behavior. The United States Supreme Court has identified attempts to remove an inmate from free society based on a “specific parole violation” or a decision to revoke good-time credits for “specific, serious misbehavior” as situations where “more formal, adversary-type procedures might be useful.”
Wilkinson v. Austin,
With regard to a decision to remove an inmate from SOTP, Iowa Code section 903A.4 grants IDOC the authority to “establish rules as to what constitutes
‘satisfactory participation’
for purposes of a reduction of sentence under section 903A.2, for programs that are available or unavailable.” The discretion to determine what constitutes “satisfactory participation” in a treatment program necessarily includes the discretion to remove those who do not satisfactorily participate. Removal from SOTP occurs after an inmate’s initial classification and is based on an assessment of the inmate’s participation by
*497
the professionals administering the SOTP program. This determination is more closely aligned with the parole release decisions addressed in
Greenholtz,
where the decisions are affected by “analysis of psychological factors combined with fact evaluation guided by the practical experience of the ... decisionmakers.”
The exercise of IDOC’s discretion is evident in the factual circumstances surrounding Reilly’s removal. After removing Reilly from SOTP, IDOC employees worked with Reilly to remedy the problem and Reilly was readmitted to SOTP. Reilly’s removal could have affected the duration of his prison sentence by over two years, but only affected it by approximately two months because he was shortly readmitted to SOTP.
Cf. Montgomery v. Anderson,
The full panoply of protections that would accompany a formal hearing are unnecessary for removal from SOTP because of the nature of the liberty interest at stake, the discretion granted to IDOC employees, and the professional judgment behind any removal decision. Regardless, the minimum protections of due process, noted in
Greenholtz,
must be met. We hold IDOC must provide (1) advance notice allowing the inmate time to secure documents or prepare a statement, (2) an opportunity to present documentary evidence, letters, or make statements before the decision-maker, and (3) an explanation for the reasons behind any removal decision. Additionally, although not contested in
Greenholtz,
it is a fundamental element of due process that the decision-makers be “sufficiently impartial.”
See Wolff,
The process employed by IDOC to remove Reilly from SOTP failed to comply with three of the four procedures we hold due process requires. First, Reilly was not given advance notice that he would have an opportunity to address the removal decision before the deci-sionmakers. Second, the record demonstrates that during the meeting at which Reilly was presented with a refusal form explaining the consequences of removal from SOTP, which he refused to sign, Reilly was not allowed to present documentary evidence or make a statement to the deci-sionmakers on his own behalf. Third, although IDOC notes indicate Reilly was removed from SOTP because he failed a polygraph, had no new admissions, and was uncooperative, Reilly’s handwritten appeal suggests IDOC did not fully explain these reasons for his removal and would only tell him he failed a polygraph examination. Reilly was, however, eventually informed of the reasons for his removal from SOTP and IDOC worked to help Reilly adjust those problems that led to his removal, allowing Reilly to successfully rejoin SOTP within four months. IDOC’s work with Reilly.after his removal does not cure the initial failure to provide him with the reasons for his removal.
*498
When Reilly was informed of the decision to remove him from SOTP, he met with three prison officials, including the treatment director. Reilly complains that these officials were not “sufficiently impartial.” We have explained within the prison disciplinary context that “[t]he independence required of the hearing officer is that the officer not be personally involved in the incident for which discipline is sought or in prior disciplinary actions against the inmate.”
Williams v. State,
In summary, IDOC complied with only one of the four basic requirements — an impartial decisionmaker — and therefore, Reilly’s due process rights were violated. We remand to the district court for determination of what, if any, remedy is required.
D. Polygraph Examination. IDOC required Reilly to take a specific issue polygraph examination as part of the SOTP because Reilly’s account of his crime differed from his victim’s account. After Reilly failed the polygraph examination, IDOC removed him from the SOTP and stopped his ability to earn additional time off his sentence. IDOC based this decision on the polygraph, a lack of “new admissions” and on Reilly’s “uncooperative” behavior. Reilly argues it was improper for IDOC to rely on a polygraph examination to make the removal decision which led to Reilly’s ineligibility to earn time. Reilly cites to this court’s general distrust of polygraph examinations,
see State v. Conner,
As noted above, section 903A.4 authorizes IDOC to develop policy and procedural rules to implement section 903A.2 and determine what constitutes “satisfactory participation” in a treatment program. It is not improper for IDOC to consider polygraph examinations administered as part of treatment to make decisions regarding whether an inmate’s participation was satisfactory and whether the inmate should be removed. Although unstipulat-ed polygraph examinations are not typically admissible in court proceedings and the court of appeals has held they are inadmissible in IDOC disciplinary proceedings, IDOC used the polygraph examination here for a different purpose. The examination was not used for general discipline or adjudicative fact-finding but was instead used as part of a treatment program. We have previously noted the use of polygraphs in sex offender treatment programs.
Swanson v. Civil Commitment Unit for Sex Offenders (CCUSO),
We held in
Dykstra,
that use of a polygraph as a substitute for procedural protections or as the sole evidence for deprivation of a liberty interest may implicate constitutional concerns.
Dykstra,
IV. Conclusion.
IDOC’s application of Iowa Code section 903A.2 to Reilly did not violate the ex post facto clause. The procedures employed by IDOC to remove Reilly from SOTP did violate his procedural due process rights, although IDOC is entitled to consider polygraph examinations in making SOTP removal decisions. We remand to the district court for consideration of the appropriate remedy.
WRIT SUSTAINED.
Notes
. It is unclear from the record whether Reilly was discharged on May 27, 2008 and his case is therefore moot.
Wilson v. Farrier,
. The original petition was filed under the 2005 code. Iowa Code section 822.2 was amended effective July 1, 2006 to make non-substantive corrections. See 2006 Iowa Acts eh. 1010, § 162. These corrections renumbered section 822.2’s subsections and unnumbered paragraphs. Because this amendment did not make substantive changes and makes the subsections more easily identifiable, we refer to chapter 822 as set forth in the 2009 code.
. The United States Supreme Court has noted that "[although
Sandin
abrogated
Green-holtz’s
and
Hewitt’s
methodology for establishing the liberty interest, these cases remain instructive for their discussion of the appropriate level of procedural safeguards."
Wilkinson v. Austin,
