
448 F.Supp.2d 13 (2006)
Charles SHULER, Plaintiff,
v.
UNITED STATES of America, Defendant.
Civil Action No. 05-2207 (RMU).
United States District Court, District of Columbia.
August 21, 2006.
*14 *15 Patrick M. Regan, Regan Zambri & Long, PLLC, Paul J. Cornoni, Regan, Halperin & Long, PLLC, Washington, DC, for Plaintiff.
Darrell C. Valdez, U.S. Attorney's Office, Washington, DC, for Defendant.

MEMORANDUM OPINION
URBINA, District Judge.

GRANTING THE DEFENDANT'S MOTION TO DISMISS

I. INTRODUCTION
The plaintiff, Charles Shuler, is permanently paralyzed after surviving a gunshot wound to the back. He claims that Kevin Gray, a convicted first degree murderer, ordered his murder after discovering that Shuler worked as a confidential informant for the Federal Bureau of Investigation and assisted law enforcement authorities in Gray's apprehension.[1] He brings this suit against the United States arguing that *16 his identification as a government informant stemmed from the government's negligence in protecting his identity and in protecting him from Gray and Gray's criminal entourage. The defendant now moves to dismiss this case arguing that it is entitled to sovereign immunity. Because the defendant's conduct constitutes discretionary functions, it is entitled to sovereign immunity. Accordingly, the court grants the defendant's motion to dismiss.

II. BACKGROUND
For purposes of this motion, the court assumes the following to be the pertinent facts in this case. The plaintiff served as a confidential informant for the FBI, the Drug Enforcement Agency, and the United States Attorney's Office for the District of Columbia. Compl. ¶¶ 8, 9. The plaintiff assisted these law enforcement agencies in various criminal investigations, including the investigation of Kevin Gray. Id. ¶ 9. In early December 1999, the plaintiff informed the FBI of Gray's whereabouts, but "warned the FBI not to apprehend Mr. Gray immediately because only the Plaintiff had knowledge of Mr. Gray's location."[2] Compl. ¶ 17. The plaintiff was concerned that if the FBI immediately arrested Gray, Gray would know that the plaintiff was a government informant. Id. Immediately upon receiving Gray's location from Shuler, law enforcement officials arrested Gray. Id. These actions effectively "disclosed to Mr. Gray that the Plaintiff was an informant." Id. ¶ 18. The plaintiff then assisted the FBI in locating and apprehending Gray's lieutenants. Id. ¶ 19. The government made "assurances" to the plaintiff that they would protect him from these individuals.[3]Id. ¶¶ 19, 20.
On December 15, 1999, roughly two weeks after the authorities apprehended Gray, the plaintiff was shot in the back. Compl. ¶ 24. The plaintiff alleges that the shooter was acting on Gray's orders. Id. Although the plaintiff survived the shooting, he is permanently paralyzed. Id. The plaintiff argues that, as a matter of law, his involvement as an informant "created a special relationship" between himself and federal law enforcement which made the authorities "responsible for his safety and protection." Compl. ¶ 25.
The plaintiff argues that the defendant "owed a duty of care to the Plaintiff to conceal his identity as an informant, to provide protection to the Plaintiff consistent with national standards of care [and] to avoid placing Plaintiff in inherent danger." Compl. ¶ 27. The plaintiff also alleges that the defendant owed the plaintiff a duty of care "to inform [him] of critical information concerning the danger . . . created by the Defendant's acts or *17 omissions, [and] to provide advisement and supervision of Plaintiff's activities as an informant consistent with the national standards of care and protocol" of federal law enforcement authorities. Id.
The defendant filed a motion to dismiss under Rule 12(b)(1) and 12(b)(6) of the Federal Rules of Civil Procedure. The defendant argues that the plaintiff's complaint is barred by the discretionary function exception to the Federal Tort Claims Act ("FTCA"), 28 U.S.C. §§ 2871 et seq. and the private analogue requirement for suits brought under that act. Def.'s Mot. The court turns now to a legal analysis of this motion.

III. ANALYSIS
The defendant moves to dismiss under both Federal Rule of Civil Procedure 12(b)(1), which concerns the court's subject-matter jurisdiction, and Rule 12(b)(6), which tests the legal sufficiency of the complaint. Def.'s Mot. at 1. Because courts should consider Rule 12(b)(1) jurisdictional challenges before Rule 12(b)(6) challenges, United States ex rel. Settlemire v. Dist. of Columbia, 198 F.3d 913, 920 (D.C.Cir.1999) (citing United States ex rel. Kreindler & Kreindler v. United Techs. Corp., 985 F.2d 1148, 1155-56 (2d Cir. 1993)), and because an analysis under Rule 12(b)(1) is dispositive, the court does not consider the defendant's challenge under Rule 12(b)(6) but proceeds solely under Rule 12(b)(1).

A. Legal Standard for Rule 12(b)(1) Motion to Dismiss
Federal courts are courts of limited jurisdiction and the law presumes that "a cause lies outside this limited jurisdiction." Kokkonen v. Guardian Life Ins. Co. of Am., 511 U.S. 375, 377, 114 S.Ct. 1673, 128 L.Ed.2d 391 (1994); St. Paul Mercury Indem. Co. v. Red Cab Co., 303 U.S. 283, 288-89, 58 S.Ct. 586, 82 L.Ed. 845 (1938); see also Gen. Motors Corp. v. Envtl. Prot. Agency, 363 F.3d 442, 448 (D.C.Cir.2004) (noting that "[a]s a court of limited jurisdiction, we begin, and end, with an examination of our jurisdiction").
Because "subject-matter jurisdiction is an `Art. III as well as a statutory requirement[,] no action of the parties can confer subject-matter jurisdiction upon a federal court.'" Akinseye v. Dist. of Columbia, 339 F.3d 970, 971 (D.C.Cir.2003) (quoting Ins. Corp. of Ir., Ltd. v. Compagnie des Bauxites de Guinee, 456 U.S. 694, 702, 102 S.Ct. 2099, 72 L.Ed.2d 492 (1982)). On a motion to dismiss for lack of subjectmatter jurisdiction pursuant to Rule 12(b)(1), the plaintiff bears the burden of establishing that the court has subjectmatter jurisdiction. Lujan v. Defenders of Wildlife, 504 U.S. 555, 561, 112 S.Ct. 2130, 119 L.Ed.2d 351 (1992). The court may dismiss a complaint for lack of subjectmatter jurisdiction only if "it appears beyond doubt that the plaintiff can prove no set of facts in support of his claim which would entitle him to relief." Empagran S.A. v. F. Hoffman-LaRoche, Ltd., 315 F.3d 338, 343 (D.C.Cir.2003) (quoting Conley v. Gibson, 355 U.S. 41, 45-46, 78 S.Ct. 99, 2 L.Ed.2d 80 (1957)).
Because subject-matter jurisdiction focuses on the court's power to hear the claim, however, the court must give the plaintiff's factual allegations closer scrutiny when resolving a Rule 12(b)(1) motion than would be required for a Rule 12(b)(6) motion for failure to state a claim. Macharia v. United States, 334 F.3d 61, 64, 69 (D.C.Cir.2003); Grand Lodge of Fraternal Order of Police v. Ashcroft, 185 F.Supp.2d 9, 13 (D.D.C.2001). Moreover, the court is not limited to the allegations contained in the complaint. Hohri v. United States, 782 F.2d 227, 241 (D.C.Cir.1986), vacated on other grounds, 482 U.S. 64, 107 S.Ct. *18 2246, 96 L.Ed.2d 51 (1987). Instead, to determine whether it has jurisdiction over the claim, the court may consider materials outside the pleadings. Herbert v. Nat'l Acad. of Scis., 974 F.2d 192, 197 (D.C.Cir. 1992).

B. The Court Grants the Defendant's Motion to Dismiss
The plaintiffs claims are predicated on the FTCA, which constitutes a limited waiver of the federal government's sovereign immunity. Id. ¶ 1. The defendant claims that two exceptions to the FTCA apply and that the defendant, therefore, is entitled to sovereign immunity in this case. Def.'s Mot. at 5.

1. Legal Standard for Federal Tort Claims Act
The FTCA "grants federal district courts jurisdiction over claims arising from certain torts committed by federal employees in the scope of their employment, and waives the government's sovereign immunity from such claims." Sloan v. Dep't of Housing & Urban Dev., 236 F.3d 756, 759 (D.C.Cir.2001) (citing 28 U.S.C. §§ 1346(b) & 2674). To protect the government from liability "that would seriously handicap efficient government operations," the waiver of sovereign immunity is subject to several exceptions. Beins v. United States, 695 F.2d 591, 611 (D.C.Cir.1982) (internal quotations omitted); 28 U.S.C. § 2680. If any one of the exceptions applies, the district court lacks subject-matter jurisdiction. 28 U.S.C. § 2680; Sloan, 236 F.3d at 759.
An oft-cited exception to the FTCA's sovereign-immunity waiver is the discretionary-function exception, which bars claims "based upon the exercise or performance or the failure to exercise or perform a discretionary function or duty on the part of a federal agency or an employee of the Government, whether or not the discretion involved be abused." 28 U.S.C. § 2680(a). To determine whether the discretionary-function exception applies, courts engage in a two-part inquiry. Macharia, 334 F.3d at 65 (citing United States v. Gaubert, 499 U.S. 315, 322-23, 111 S.Ct. 1267, 113 L.Ed.2d 335 (1991)). First, the court must determine whether a federal statute, regulation, or policy "specifically prescribes a course of action for an employee to follow . [leaving] the employee [] no rightful option but to adhere to the directive." Id. If so, the challenged action does not involve "an element of judgment or choice" and does not fall within the discretionary-function exception. Id. Second, the court must evaluate whether the challenged action "is of the kind that the discretionary function exception was designed to shield" from judicial second-guessing: namely, governmental actions and decisions based on public-policy considerations. Id. If the action is not grounded in public-policy concerns, it is not immunized by the discretionary function exception. Appleton v. United States, 69 F.Supp.2d 83, 92 (D.D.C.1999).
To assure itself of subject-matter jurisdiction, the court must determine the basis for a plaintiff's FTCA claims, keeping in mind that "[a] litigant cannot circumvent the [FTCA] by the simple expedient of drafting in terms of negligence a complaint that in reality is a claim as to which the United States remains immunized." Art Metal-U.S.A., Inc. v. United States, 753 F.2d 1151, 1160 n. 16 (D.C.Cir. 1985) (quoting Johnson v. United States, 547 F.2d 688, 691-92 (D.C.Cir.1976)). Toward that end, the court "must review the complaint to determine what actions allegedly caused the injuries." Cope v. Scott, 45 F.3d 445, 448 (D.C.Cir.1995) (applying the discretionary-function exception); see also Kugel, 947 F.2d at 1507 (noting in applying the intentional-tort exception that the court "must scrutinize the alleged *19 cause of [an FTCA plaintiffs] injury"). Although the court must accept the plaintiffs version of the facts as true, the court need not accept "the plaintiff's characterization of the facts." Fisher Bros. Sales, Inc. v. United States, 46 F.3d 279, 286 (3d Cir.1995) (emphasis in original); see also Gen. Dynamics Corp. v. United States, 139 F.3d 1280, 1283 (9th Cir.1998) (citing Fish er Bros. with approval).
2. The Plaintiffs FTCA Claims are Barred Because the Alleged Conduct is Based Upon the Exercise of Discretionary Functions
According to the plaintiffs complaint, the defendant's negligence led to his paralysis. Although the plaintiff alleges only negligence, his claims really arise from two separate theories of negligence. First, the plaintiff claims that the defendant negligently apprehended Gray at such time as to reveal Shuler's identity as a confidential informant. Compl. ¶ 10. Second, the plaintiff claims that the defendant failed to provide him with adequate protection despite an affirmative duty to do so. See Compl. ¶¶ 26-28.
The plaintiff recognizes that the court must first consider whether a federal statute, regulation, or policy "specifically prescribes a course of action for an employee to follow . . . [leaving] the employee [] no rightful option but to adhere to the directive." Macharia, 334 F.3d at 65 (citing Gaubert, 499 U.S. at 322-23, 111 S.Ct. 1267); Pl.'s Opp'n at 11. Nevertheless, the plaintiff provides no argument supporting a claim that the defendant was statutorily (or through regulation or policy), required to take a specific course of action. Indeed, the court is aware of no statute, regulation, or policy which prescribes a specific course of action at play in the instant case, namely, when to arrest a dangerous criminal suspect or prescribing specific duties on law enforcement with regard to government witnesses.[4]
With no statute, regulation, or policy prescribing a specific course of action, the court next evaluates whether the challenged action "is of the kind that the discretionary function exception was designed to shield" from judicial second-guessing: namely, governmental actions and decisions based on public-policy considerations. Macharia, 334 F.3d at 65. For the reasons stated below, the court concludes that the decision as to when to arrest a criminal suspect and the decision to protect a government informant constitute decisions "of the kind that the discretionary function exception was designed to shield." Macharia, 334 F.3d at 65.

a. The Decision as to When to Arrest Criminal Suspect Constitutes a Discretionary Function under the FTCA
The plaintiff reported the whereabouts of Gray to the FBI in his role as a government informant. Compl. ¶ 17. Although the plaintiff cautioned the defendant that he was the only person with knowledge of Gray's specific location at that time, the FBI immediately apprehended Gray. Id. The plaintiff believes that the FBI's actions revealed to Gray that the plaintiff was a government informant. Id. *20 The government contends that the decision "when to arrest a violent and dangerous person who may kill again if not arrested immediately" constitutes "an integral part of the police function" and, therefore, is "grounded within the discretion of government and police officials." Def.'s Mot. at 10. The court agrees.
Determining when to arrest an individual concerns a policy judgment involving prosecutorial discretion in curbing criminal behavior. Mesa v. United States, 837 F.Supp. 1210, 1213 (S.D.Fla.1993) (ruling that "the function of determining when and how to execute an arrest warrant is quintessentially a discretionary function, involving choices and judgments that are grounded in policy considerations"). It involves considerations of community safety. Id. As with the prosecutorial function, law enforcement's arrest function "brings to bear the enormous power of the state against individuals." Gray v. Bell, 712 F.2d 490, 497 (D.C.Cir.1983).
"[T]he weight of [prosecutorial power] and the general opprobrium of the criminal sanction combine to create a unique potential for vengeful counter suits." Id. Permitting a lawsuit which hinges on law enforcement's arrest decision, such as in this case, risks clouding law enforcement's decision-making process with considerations well apart from the function society entrusts it to perform. Mesa, 837 F.Supp. at 1214 (stating that "[t]he federal government's decisions concerning enforcement of its criminal statutes comprise a part of its pursuit of national policy. If the government could be held liable for prosecuting or failing to prosecute such a case, its choices in this area could quite conceivably be affected by such a suit"); see also, Gray, 712 F.2d at 511 (stating that "courts should not subject the sovereign to liability where doing so would inhibit vigorous decision making by government policymakers"). The FBI's decision to arrest Gray at the time and manner of its choosing is a discretionary choice subject to policy judgments. Id. As such, the FTCA's discretionary function exception applies. The FTCA was designed to protect the government from judicial second guessing into this type of discretion-laden decision.[5]Macharia, 334 F.3d at 65 (citing Gaubert, 499 U.S. at 322-23, 111 S.Ct. 1267 (1991)).

b. The Decision to Protect a Government Informant Constitutes a Discretionary Function under the FTCA
The plaintiff's second theory of negligence stems from the defendant's failure to provide the plaintiff with adequate protection from Gray and his associates. Compl. ¶ 23. The plaintiff claims that he had a "justifiable expectation of protection" and that "he did not receive such protection." Id. In support of its motion to dismiss, the defendant cites Ochran v. United States, 117 F.3d 495 (11th Cir.1997) for the proposition that a "law enforcement official's decision as to how to protect a victim and how to react against the threatening individual are well-within the discretionary function exception and claims based upon those theories are barred." Def.'s Mot. at 8. The plaintiff, on the other hand, argues that under Ochran, a law enforcement agency may be liable under the FTCA if the agency voluntarily assumed a specific duty to protect the informant. Pl.'s Opp'n at 15 (citing Ochran, *21 117 F.3d at 501 n. 7). The defendant has the better of the two arguments.
In Ochran, the court considered a government informant's claim under the FTCA for failure of the government to offer her adequate protection from her exboyfriend, who she had reported to law enforcement authorities as being involved in drug-trafficking. Ochran, 117 F.3d at 498. In considering the Attorney General Guidelines for Victims and Witnesses Assistance, the court noted that "[elven though the Guidelines require the [prosecutor] to arrange for the reasonable protection of a victim who is threatened, they did not specify how this protection is to be provided." Id. at 500 (emphasis in original). For this reason, the court concluded that "the decision of the [prosecutor] as to how to protect a victim that has been threatened by a suspected offender is susceptible to policy analysis." Id. (recognizing that in making this decision, the prosecutor will necessarily balance such nonjusticiable policy factors as "the victim's need for protection in light of the severity and credibility of the threat, the allocation of limited government resources, and the government's dealings with the suspected offender"). The government is entitled to wide discretion in the extent of protection it offers to cooperators. Piechowicz v. United States, 885 F.2d 1207, 1211-1212 (4th Cir.1989).
The plaintiff cites Ochran for the proposition that the government should be subjected to liability because it voluntarily undertook to protect him. Pl.'s Opp'n at 15. In Ochran, the court noted that the government may be liable for actions if it "voluntarily assume[s] a specific duty that involved no policy judgments." Ochran, 117 F.3d at 506 n. 7. Here, the plaintiff alleges that the defendant "repeatedly promised to protect" the plaintiff. Pl.'s Opp'n at 16. As the Ochran court noted, however, a generalized promise to provide protection to government witnesses is insufficient to constitute a waiver under the FTCA because it does not contain a specific promise involving no policy judgments. Ochran, 117 F.3d at 506 n. 7. The plaintiff's generalized allegation of a promise to provide protection does not fit within the narrow exception the Ochran court contemplated. Id. (stating that a waiver might occur, by way of example, if the government explicitly promised to station U.S. Marshals at the witness's door but then failed to do so due to the government's negligence). Absent any claim of an explicit promise to provide a specific type of protection, the defendant's protective services constitute a discretionary function under the FTCA. 28 U.S.C. § 2680(a). Accordingly, the FTCA does not waive sovereign immunity as to this claims. Id.

IV. CONCLUSION
For the foregoing reasons, the court grants the defendant's motion to dismiss. An order consistent with this Memorandum Opinion is separately and contemporaneously issued on this 21st day of August, 2006.
NOTES
[1]  ON January 9, 2003, Kevin Gray was convicted by a jury of eighty counts of criminal behavior including twenty county of first degree murder while armed, numerous countys of distribution of cocaine, firearms offenses, and witness tampering. Def.'s Mot., Att. 1. On May 11, 2005, Judge Lamberth entered judgment in Gray's case and sentenced him to over forty life sentences.
[2]  Critical to the plaintiff's theory of causation is the assumption that Gray believed that the plaintiff was the sole individual with knowledge of his location. Although the plaintiff did not allege this point in his complaint, the court will give the plaintiff the benefit of the doubt and presume as much.
[3]  The plaintiff's complaint contains an inconsistency. First, the plaintiff avers that the government made assurances to him that they would provide him protection from Gray and his gang. Compl. ¶¶ 19, 20. Later, however, the plaintiff indicates that his "justifiable expectation of protection" stemmed not from the government's explicit assurances but "[i]n light of the dangerous work Plaintiff did to provide confidential information concerning Mr. Gray and in light of Plaintiff's requests for protection." Compl. ¶ 23. The plaintiff also alleges that despite making "specific requests for protection from Mr. Gray and his associates . . . he did not receive such protection." Compl. ¶ 23. Although a plaintiff can "plead himself out of court" by alleging or stating too much in his complaint, Sparrow v. United Air Lines, Inc., 216 F.3d 1111, 1116 (D.C.Cir.2000), the court will presume that the plaintiff alleges that the government explicitly assured him of protective services.
[4]  Under Department of Justice guidelines, government witnesses have the right to "reasonable protection from a suspected offender and persons acting in concert with or at the behest of the suspected offender." Attorney General Guidelines for Victim and Witness Assistance (2005) (IV)(3)(A)(1)(a), available at http://www.ovc.gov/publications/infores/agg 2000/welcome.html. These regulations only provide for "reasonable" protection, which inherently includes a great deal of discretion and may give way when legitimate community safety concerns are at play. Ochran v. United States, 117 F.3d 495, 500 (11th Cir. 1997) (recognizing that the guidelines are "laden with discretionary language").
[5]  The court notes that law enforcement's arrest decisions are subjected to checks and balances built into the judicial system. See Gray v. Bell, 712 F.2d 490, 498 (D.C.Cir.1983) (recognizing that for prosecutorial discretion, "built-in safeguards diminish the need for private redress"). As with prosecutorial abuse, "[i]nherent in the judicial process are checks that serve to restrain" law enforcement abuses, "and any abuse that does occur is subject to various self-remedying mechanisms of the adversarial process." Id.
