Jackson v. State, 919 N.W.2d 470

In 2007 a jury convicted Jeremy Jackson of multiple counts including first‑degree murder for the benefit of a gang; this Court affirmed on direct appeal in 2009.
Jackson filed his fifth pro se postconviction petition in 2017 challenging the grand jury evidence—particularly testimony from a Gang Strike Task Force member that characterized street gang culture and identified Jackson as a confirmed gang member.
At trial Jackson had moved pretrial to dismiss six gang‑related counts, arguing the grand jury received inadmissible/duplicative expert testimony and lacked probable cause; the motion was denied and those arguments were raised on direct appeal.
Jackson’s 2017 petition asserted (1) the indictment violated due process because it rested on inadmissible/prejudicial evidence and (2) trial counsel was ineffective for failing to litigate evidentiary defects.
The postconviction court summarily denied the petition as procedurally barred under the Knaffla rule and alternatively as time‑barred; this Court affirmed, holding Knaffla applied.

Issue	Jackson's Argument	State's Argument	Held
Whether the grand jury indictment was invalid because it relied on inadmissible/duplicative expert testimony about gangs	Grand jury received inadmissible and prejudicial expert testimony that deprived it of independent judgment	Same challenge was raised and decided on direct appeal; claim is therefore barred	Procedurally barred by Knaffla; claim not relitigable on successive petition
Whether trial counsel was ineffective for failing to challenge the indictment’s evidentiary basis	Counsel failed to move to dismiss or otherwise preserve the evidentiary challenge, constituting ineffective assistance	Ineffective‑assistance claim was raised in an earlier postconviction petition and is barred by Knaffla; alternatively, record shows counsel did challenge the indictment	Procedurally barred by Knaffla; alternatively fails on the merits because counsel did litigate the issue
Whether federal‑constitutional claims are exempt from Knaffla’s bar	Federal cases cited (Massaro, Murray) allegedly show procedural bars should not apply to constitutional claims	Precedents do not categorically exempt federal constitutional claims; Minnesota courts routinely apply Knaffla to such claims	Knaffla applies to these constitutional claims; cited federal cases are factually distinguishable

State v. Jackson, 770 N.W.2d 470 (Minn. 2009) (direct appeal rejecting challenge to gang‑related indictment evidence)
State v. Knaffla, 243 N.W.2d 737 (Minn. 1976) (rule barring claims raised on direct appeal or previous petitions from successive postconviction petitions)
Massaro v. United States, 538 U.S. 500 (2003) (addressing when ineffective‑assistance claims must be raised on direct appeal)
Murray v. Carrier, 477 U.S. 478 (1986) (procedural default doctrine and cause‑prejudice excusal)
Colbert v. State, 870 N.W.2d 616 (Minn. 2015) (approving summary denial when Knaffla bars successive petition)
Lynch v. State, 749 N.W.2d 318 (Minn. 2008) (applying Knaffla to constitutional claims in postconviction context)