OPINION
for the Court.
The plaintiff, Carel Bainum (plaintiff or Bainum), no stranger to the elderly, or the courts for that matter, 1 appeals pro se *419 challenging the motion justice’s grant of summary judgment in favor of the defendant, the Coventry Police Department (the department or defendant). This matter came before the Supreme Court on March 8, 2017, pursuant to an order directing the parties to appear and show cause why this Court should not summarily decide the issues raised by this appeal. After hearing the parties’ arguments and reviewing the parties’ memoranda, we conclude that cause has not been shown. Accordingly, we decide this matter at this time without further briefing or argument. For the reasons outlined below, we affirm the judgment of the Superior Court.
I
Facts and Travel
This case stems from Bainum’s allegedly unwelcomed visits to the Coventry Health and Rehabilitation Center (the center), a nursing home in Coventry, Rhode Island. At the crux of plaintiffs case is her relationship with Michael Koczan, now deceased, a former resident in the center’s dementia ward. On or around October 16, 2009, Bainum was visiting then-ninety-seven-year-old Koczan, when Officer Ryan Desisto of the department asked her to leave, at the center’s request. The plaintiff, after answering some of the officer’s questions, eventually complied with his request and voluntarily departed the home. 2 The plaintiff was also notified at some point 3 by the center’s employees that Koczan’s daughter, Kristin Wild, sought to halt any future visits from Bainum with Koczan.
Nonetheless, plaintiff, on more than one occasion, subsequently visited Koczan at the center. For example, on January 23, 2010, while disguised with a blonde wig to avoid recognition by the center’s staff, she visited Koczan. A staff member eventually recognized Bainum, however, and informed the department of her presence. Because of her contact with Koczan, the department summoned plaintiff to appear at the Kent County District Court on a criminal charge of willful trespass pursuant to G.L. 1956 § 11-44-26. That action was later transferred to the Superior Court, where a jury found Bainum guilty. On September 15, 2010, a trial justice sentenced Bainum. 4 Although plaintiff appealed to this Court, she withdrew her appeal on April 21, 2014.
Following her criminal conviction, on August 15, 2013, plaintiff brought a civil action against the department. In her complaint, she asserted that her willful-trespass conviction was the consequence of two “malicious acts” by defendant: (1) perjured testimony of Officer Desisto during plaintiffs criminal trial; and (2) altered police reports concerning Bainum’s visits to the center. With respect to the false testimony allegation, plaintiff contended that Officer Desisto testified that he gave plaintiff a verbal no-trespass warning on October 16, 2009, at the direction of Earle Lerner, the center’s then-administrator. The plaintiff referenced, however, an affidavit she obtained from Lerner just prior to pressing this claim. In it, Lerner contradicted Officer Desisto’s testimony by stating that he did not request a no-trespass *420 order or warning for Bainum on October 16 because he wanted to first discuss it with his supervisor, who was absent that day. Additionally, plaintiff alleged that members of the department inappropriately altered Officer Desisto’s October 16 police report about Bainum. Based on these assertions, plaintiff submitted that members of the department including Officer Desisto colluded and conspired against her. She further declared that “[t]he perjured testimony of Ryan Desisto, along with other intentional malicious acts by him and other employees of the Coventry Police Department, were intended to harm the Plaintiff, and they did.”
On June 4, 2015, defendant moved for summary judgment on the grounds that: (1) plaintiffs criminal conviction defeated her malicious-prosecution claim; (2) collateral estoppel barred any false-arrest claim; (3) plaintiffs conspiracy claim must fail based on its inviable underlying tort claim; and (4) qualified immunity shielded defendant from liability. Before the motion justice, plaintiff asserted that: (1) “this is a case of collusion and conspiracy”; and (2) the doctrine of collateral estoppel is inapplicable because the department was not a party in prior litigation nor was a claim of collusion and conspiracy litigated in a prior case against it.
In his bench decision on September 14, 2015, the motion justice found that plaintiffs complaint failed as a matter of law and deemed each of her claims, which he understood as false arrest, malicious prosecution, and collusion and conspiracy, to be meritless. The motion justice disposed of the false-arrest claim as he found that no arrest had occurred. 5 He also found that the malicious-prosecution claim turned on whether a prosecution was obtained without probable cause and reasoned that plaintiffs willful-trespass conviction “conclusively established” the requisite probable cause, which resolved this claim as a matter of law. Finally, the motion justice noted that he had never heard of a claim for “collusion and conspiracy”; but, assuming that such a claim existed, he held that collateral estoppel barred it because it intermingled with the events underlying plaintiffs trespass charge, for which she was tried and convicted.
On appeal, plaintiff urges the reversal of the motion justice’s grant of summary judgment. She argues that a genuine issue of material fact exists on her claim of “[cjollusion and [conspiracy” because she offered “specific, admissible facts in the records, through documentation and affidavits” that constitute prima facie evidence on this issue. In her papers before us, plaintiff, in spite of the above-mentioned affidavit, describes the catalyst of her claim to be a scheme by Lerner to “set [her] up” and “keep her out” of the center. She asserts that Lerner discovered that plaintiff knew of Medicare fraud occurring under his supervision. 6 She contends that this led Lerner to retaliate by persuading Officer Desisto and other department officers to ban Bainum from the center. Beyond conspiracy, plaintiff challenges the motion justice’s consideration of collateral estoppel in his grant of summary judgment. 7
*421 II
Standard of Review
We review the grant of summary judgment de novo, utilizing standards identical to those used by the motion justice, while examining the evidence from a vantage point most favorable to the non-movant. Providence Journal Co. v. Rhode Island Department of Public Safety ex rel. Kilmartin,
III
Discussion
At the outset, we consider plaintiffs claim of “collusion and conspiracy.” Rather than an independent source of liability, civil conspiracy is a vehicle for demonstrating joint liability for distinct tor-tious behavior; and, as such, plaintiff must set forth “a valid underlying intentional tort theory.” Read & Lundy, Inc. v. Washington Trust Co. of Westerly,
Malicious prosecution requires proof that the defendants (1) commenced a prior criminal case against the plaintiff, (2) lacked probable cause to bring such a proceeding, (3) maliciously commenced it, and (4) the prior proceeding closed in favor of the plaintiff. Hill v. Rhode Island State Employees’ Retirement Board,
Further, the plaintiffs malicious-prosecution claim fails under the fourth element, which requires that the criminal proceeding terminated in the plaintiffs favor. Here, the plaintiffs criminal willful-trespass conviction clearly demonstrates that
*422
the prior proceeding did not terminate in her favor. See Heck v. Humphrey,
IV
Conclusion
For the aforementioned reasons, 9 the judgment of the Superior Court is affirmed. The record in this case shall be remanded to that court.
Notes
. See Baligian v. Bainum,
. As a consequence of this visit, the department purportedly mailed plaintiff “a formal no trespass warning."
. We note that it is unclear upon which visit Bainum was informed of Wild's demand that she no longer see Koczan. The plaintiff, in her complaint, asserts that she was informed of Wild’s request on her visit to the center on January 23, 2010; in department records, however, this fact relates to Bainum’s October 2009 visit.
.In sentencing, the trial justice issued a one-year suspended sentence with probation and a no-contact order for plaintiff with Koczan.
. During the motion justice's ruling from the bench, plaintiff interjected that she "never claimed false arrest.”
. Appended to plaintiff's prebriefing statement is an article from the Hartford Business Journal that explains Lerner’s role at other nursing homes in "lying to obtain nearly $1.5 million in state Medicare payments to cover business debts and improvements to his luxury homes.”
.Additionally, plaintiff, for the first time at oral argument, asserted what she described as a violation of her right to associate or “gather” under the First Amendment to the United *421 States Constitution because she was blocked from visiting Koczan. Beyond this claim lacking merit, the raise-or-waive rule forecloses our consideration of it.
. Despite plaintiff’s puzzling assertion at oral argument that she has not raised a malicious-prosecution claim, we will proceed with analyzing this tort because malicious prosecution is the only possible claim we can perceive from the record. For example, in her complaint, she alleges that her willful-trespass conviction stemmed from "malicious acts by the Coventry Police Dept.” The plaintiff also highlighted what she described as "[t]he perjured testimony of Ryan Desisto, along with other intentional malicious acts by him and other employees of the Coventry Police Department, [which] were intended to harm the Plaintiff, and they did.”
. We, too, appreciate plaintiff's own suggestion at oral argument that this case could have been disposed of immediately because of her failure to join a proper-party defendant. In accord with this Court's holding in Peters v. Jim Walter Door Sales of Tampa, Inc.,
