Sidney Marts appeals the district court’s dismissal of his action for money damages under 42 U.S.C. § 1983 against Ike Spears, Esq.; 1 Phillip Hines, a public defender for Orleans Parish; and one John Doe, an assistant district attorney for Orleans Parish. Marts alleges that the defendants, individually and in a conspiracy, sought to deny him access to the courts and to falsely imprison him without probable cause while ostensibly awaiting his trial on a purse-snatching charge. The district court dismissed the actions because private defense counsel and the public defender were not state actors and the prosecutor was entitled to immunity. The district court also noted that to the extent Marts charged a conspiracy he failed to allege any factual basis and that claim was therefore frivolous under 28 U.S.C. § 1915(d). 2 Marts timely appealed.
The allegations in Marts’ section 1983 complaint clearly implicate the integrity of criminal proceedings pending in the Louisiana state court system. In Deakins v. Mona ghan, 3 the Supreme Court held that when a section 1983 action might have a disruptive effect upon contemporaneous state criminal proceedings, a federal district court should stay its hand. 4 We have noted, however, that the plaintiff in such an action must have alleged “injuries under federal law sufficient to justify the District Court’s retention of jurisdiction.” 5 We interpret this qualifier to require the district court to make, if appropriate, the threshold determination whether the action is frivolous under § 1915(d). 6
Marts’ claims against the defendants, dehors the alleged conspiracy, are clearly *136 without an arguable basis in law or fact, given the absence of acts under the color of state law on the part of Spears and Hines 7 and the absolute prosecutorial immunity 8 of the John Doe defendant. Concluding that Marts failed to allege any injury cognizable under federal law sufficient to justify the retention of jurisdiction, we are persuaded that those claims properly were dismissed as frivolous. 9 In light of the overarching validity of these defenses we must modify the dismissal by the district court, however, to provide for a dismissal of these claims with prejudice. 10
The district court correctly characterized as baseless Marts’ allegations of a conspiracy. Marts makes wholly eonclusionary allegations, asserting merely that Hines, Spears, and an unnamed prosecutor agreed to deny him access to the court despite knowledge that he was innocent. He opines that the goal of this conspiracy was to punish him for crimes for which he had not been charged. It is well settled that “ ‘mere eonclusory allegations of conspiracy cannot, absent reference to material facts,’ state a substantial claim of federal conspiracy.” 11 This dismissal was without prejudice. The district court did not abuse its discretion when it dismissed Marts’ action; there was no pending federal claim sufficient to justify the district court’s retention of jurisdiction pending the outcome of Marts’ state criminal proceedings.
Inasmuch as the dismissal of the conspiracy claim was without prejudice, Marts may reassert same if done properly. 12 We caution him, however, that further pleadings which do nothing more than reiterate the same inadequate factual allegations may subject him to sanctions under Fed.R.Civ.P. II. 13
MODIFIED and AFFIRMED.
Notes
. Spears is apparently the court-appointed attorney of David Atkins, another party also accused of participating in the offense for which Marts was arrested.
. The district court did not hold a hearing pursuant to
Spears v. McCotter,
.
.
Ballard v. Wilson,
.
Id.
at 1572 (quoting
Deakins,
.
See Duncan v. Gunter,
.
See Mills v. Criminal Dist. Court No. 3,
.
See Boyd v. Biggers,
. We review a dismissal under section 1915(d) for an abuse of discretion. Boyd.
.
Graves v. Hampton,
.
McAfee v. 5th Circuit Judges,
. Graves.
. Mills.
