delivered the opinion of the court:
At issue is the constitutionality of the United States Postal Service’s detention and investigation of a suspicious package, and of the search warrants and arrests which ensued. The Framers of the United States Constitution believed a uniform, safe and secure mail delivery system so important to our democracy that the United '
States Constitution requires Congress to establish a post office. U.S. Const., art. I, § 8, cl. 7. Indeed, at the inception of our Republic mail delivery was deemed so essential that some of those who unlawfully interfered *522with it were sentenced to death.1 But what of where the interfering party is the government itself, either in the person of the United States Postal Service or any of our myriad police agencies? Obviously, the United States mail cannot be completely immune from any and all investigation. Yet, the constitutional ramifications of exercising police power over the mail are significant, especially as regards the free speech guarantees of the first amendment and the search and seizure guarantees of the fourth amendment. We allowed the State’s petition for leave to appeal (155 Ill. 2d R 315) to consider whether the government’s actions in the instant case comported with the fourth amendment’s search and seizure guarantees. For the reasons expressed below, we hold that the government’s actions violated the fourth amendment and, accordingly, affirm the judgments of the lower courts suppressing the evidence and quashing defendants’ arrests.
FACTS
Defendants, Rachel H. Smith and Craig L. Shapiro, were charged with possession with intent to deliver 200 grams or more of the controlled substance psilocybin. 720 ILCS 570/401(a)(ll) (West 1994). The following facts pertinent to this appeal were subsequently elucidated.2
On or before January 19, 1995, a 14 by 14 by 9 inch package wrapped in heavy brown paper, with heavily taped seams, was deposited with the United States Postal Service’s (Postal Service) Express Mail in Eugene, Oregon. The return address was in Eugene, Oregon, and the addressee was defendant Rachel Smith of Cham-paign, Illinois. The scheduled delivery date was Friday, January 20, 1995. On Thursday, January 19, 1995, the *523package was en route to Champaign when Postal Service officials identified it as suspicious at O’Hare International Airport (O’Hare) in Chicago because it met three of the Postal Service’s drug package profile criteria, viz., wrapped in heavy brown paper; heavily taped; and addressed from one individual to another. Pursuant to the Postal Service’s internal policies, the package was removed from the mail stream at O’Hare and shipped to United States Postal Inspector Stephen Atterbury in St. Louis, Missouri, for investigation.
Atterbury received the package on Friday, January 20, 1995, whereupon he telephoned Postal Service officials in Oregon and learned that the return address on the package was fictitious. He then contacted the St. Louis County police department canine unit and arranged for one of its narcotics dogs to check the package. After the dog twice "alerted on” the package, At-terbury completed a search warrant affidavit and presented it to a federal magistrate in Missouri, who issued a search warrant at 2:38 p.m. on January 20, 1995. Atterbury thereafter searched the package and discovered that it contained the controlled substance psilocy-bin. He then contacted Champaign police officials and arranged to participate in a controlled delivery of the package the following Monday.
On Monday, January 23, 1995, Atterbury assisted the Champaign police in obtaining an anticipatory search warrant for the addressee’s premises. After the search warrant was issued, Atterbury and the police attempted the first controlled delivery of the package. Because no one answered the door, delivery was postponed until the following day. On Tuesday, January 24, 1995, Atterbury successfully accomplished a controlled delivery. Defendant Shapiro signed for the package on behalf of defendant Smith and the police then executed the anticipatory search warrant. When the police *524subsequently interviewed defendant Shapiro, Shapiro noted that Smith had been expecting the package and, when it was not delivered on time, had called the post office to inquire about the delay. The post office told her that the package was lost.
After their arrests, both defendants moved to suppress the evidence and to quash their arrests on a variety of search and seizure theories. The circuit court of Champaign County suppressed the evidence and quashed defendants’ arrests, finding, inter alla, that the government lacked probable cause to detain and to investigate the package at O’Hare, which rendered all the subsequent searches and warrants invalid. The appellate court observed that the circuit court incorrectly applied the probable cause standard instead of the reasonable articulable suspicion standard in determining the validity of the initial decision to detain and investigate the package, and further held that the latter standard had been met. The appellate court nevertheless affirmed the judgment of the circuit court on a different ground, ruling that the nature and extent of the detention and investigation which led to the advent of probable cause were unreasonable. 283 Ill. App. 3d at 354-55.
ANALYSIS
Whether the government has seized property in violation of the fourth amendment generally presents a mixed question of law and fact: first a court weighs the evidence and determines the facts surrounding the complained-of conduct, after which it decides whether, as a matter of law, these facts constitute an unconstitutional seizure. In the instant case, however, there are no factual disputes and our review is de nova. People v. Foskey, 136 Ill. 2d 66, 76 (1990). We additionally observe that our disposition of this case follows from our conclusions regarding the constitutionality of (1) the initial decision to detain and investigate the defendants’ package *525at O’Hare International Airport; and (2) the reasonableness of that detention and investigation. Accordingly, we consider only these issues and do not reach the arguments raised by the parties concerning the anticipatory search warrant issued in Champaign, Illinois.
I. Decision to Detain and to Investigate the Package
The United States Constitution protects the "right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures.” (Emphasis added.) U.S. Const., amend. IV.3 When the people deposit their effects/possessions for delivery with the United States mail, the constitutional proscriptions concerning searches and seizures do not cease to apply simply because the item has been delivered into the hands of the government. See United States v. Place, 462 U.S. 696, 705, 77 L. Ed. 2d 110, 119-20, 103 S. Ct. 2637, 2643 (1983) ("seizure may be made after the owner has relinquished control of the property to a third party”). Indeed, effects deposited with the United States mail enjoy the same search and seizure protections as if they were located within a private residence. In re Jackson, 96 U.S. 727, 733, 24 L. Ed. 877, 879 (1878).
Yet the fourth amendment does not preclude all investigations of the mail. A seizure, after all, involves the meaningful interference with a person’s possessory *526 interests in an item of personal property. United States v. Jacobsen, 466 U.S. 109, 80 L. Ed. 2d 85, 104 S. Ct. 1652 (1984). Citing United States v. Van Leeuwen, 397 U.S. 249, 252, 25 L. Ed. 2d 282, 285, 90 S. Ct. 1029, 1032 (1970), the State contends that the mere detention of mail to examine the exterior of a package never constitutes a seizure because the fourth amendment does not prohibit examinations of the exterior of packages, regardless of whether delivery delays result. As defendants correctly counter, however, such a broad reading of Van Leeuwen is unwarranted given its further statement that "[theoretically *** detention of mail could at some point become an unreasonable seizure of 'papers’ or 'effects’ within the meaning of the fourth amendment.” United States v. Van Leeuwen, 397 U.S. at 252, 25 L. Ed. 2d at 285, 90 S. Ct. at 1032. Indeed, to suggest otherwise raises an Orwellian specter quite at odds with the fourth amendment. The investigation of the exterior of a package by the government may often be consistent with the fourth amendment; however, depending upon the nature and duration of the detention and investigation, it may at other times violate the fourth amendment’s seizure proscription. United States v. Van Leeu-wen, 397 U.S. at 252, 25 L. Ed. 2d at 285, 90 S. Ct. at 1032; see also United States v. Allen, 990 F.2d 667, 671 (1st Cir. 1993) (considering, and citing other cases which have considered, whether the government’s detention of mail amounted to an unconstitutional seizure as anticipated in Van Leeuwen).
The rationale for allowing the detention and investigation of mail absent probable cause is found in Terry v. Ohio, 392 U.S. at 21, 20 L. Ed. 2d at 906, 88 S. Ct. at 1880 (1968), and its progeny, which interpret the fourth amendment as permitting minimally intrusive investigatory stops of individuals and/or their property where there is a reasonable suspicion of criminal activity. See *527Ill. Rev. Stat. 1971, ch. 38, pars. 107 — 14, 108 — 1.01 (statutory adoption of Terry standard in Illinois). Reasonable suspicion arises where specific and articulable facts, and rational inferences therefrom, reasonably justify an intrusion. Terry v. Ohio, 392 U.S. at 21, 20 L. Ed. 2d at 906, 88 S. Ct. at 1880. Based upon experience and drug-trafficking intelligence, the United States Postal Inspection Service has developed a drug package profile for packages deposited in the Express Mail and Priority Mail. Profile characteristics include: (1) heavy brown paper wrapping; (2) heavily taped seams; (3) handwritten address label; (4) sent from one individual to another; (5) mailed from a zip code different from the address; and (6) a fictitious address. While it is uncertain whether any one of these criteria, standing alone, would support a finding of reasonable articulable suspicion, in various combinations these criteria might indeed support such a finding.
In the instant case, Postal Service officials initially decided to investigate defendants’ package at O’Hare because it was wrapped in brown paper with heavy taping and was hand-addressed from one individual to another. In considering the constitutionality of this action, the trial court erroneously ruled that probable cause was necessary to permit the detention and investigation of defendants’ package, whereupon it concluded that the initial detention and investigation amounted to an unconstitutional seizure. The appellate court, however, applied the legally appropriate reasonable articulable suspicion standard and concluded that there was reasonable suspicion to detain and investigate the package. 283 Ill. App. 3d at 351-52.
Despite defendants’ protestations otherwise, we hold that the appellate court was correct in its conclusion that these factors were sufficient to give rise to a reasonable articulable suspicion that the package contained *528narcotics. According to the Postal Service, only 5% of Express Mail packages are addressed from one individual to another. This fact, in concert with the brown paper and heavy taping typically used to prevent narcotics odors from escaping such packages, warranted a minimally intrusive detention and investigation of defendants’ package under the reasonable articulable suspicion standard. United States v. Place, 462 U.S. at 703, 77 L. Ed. 2d at 118, 103 S. Ct. at 2642.
II. Reasonableness of the Detention and Investigation
We next consider the reasonableness of the government’s detention and investigation of the defendants’ package, for where reasonable articulable suspicion permits the detention and investigation of a person’s personal property, the fourth amendment further demands that that detention and investigation be reasonable. United States v. Place, 462 U.S. at 709-10, 77 L. Ed. 2d at 122-23, 103 S. Ct. at 2645-46. Whether the detention and investigation of a person’s property, commenced upon reasonable articulable suspicion of criminal activity, is itself reasonable depends largely upon investigatory diligence and the length of detention. United States v. Place, 462 U.S. at 709-10, 77 L. Ed. 2d at 122-23, 103 S. Ct. at 2645-46; see also United States v. Allen, 990 F.2d 667, 671-72 (1st Cir. 1993) (applying the United States v. Place criteria to determine reasonableness of detention and investigation of United States mail). Only when the nature and extent of the detention are minimally intrusive of an individual’s fourth amendment possessory interests can opposing law enforcement interests support a seizure based upon less tha'n probable cause. United States v. Place, 462 U.S. at 703, 77 L. Ed. 2d at 118, 103 S. Ct. at 2642.
Here the government did not expeditiously conduct its investigation of the defendants’ package at O’Hare, where it initially targeted the package for investigation *529because it was wrapped in brown paper, heavily sealed with tape and hand-addressed from one individual to another. Indeed, no investigation occurred at O’Hare. Instead, pursuant to an internal policy of the Postal Service, the package was sealed in a new container and rerouted for investigation by the postal inspector in St. Louis, far afield from either O’Hare or the package’s intended destination in Champaign, Illinois. In St. Louis, Postal Inspector Atterbury telephoned postal officials in Oregon and determined that the return address was fictitious. He then arranged to have a dog trained to detect drugs come into close proximity to the package, which the dog alerted on twice. At this juncture there was probable cause to suspect the package contained narcotics and, after receiving a warrant from a federal magistrate in Missouri, Atterbury searched the package and discovered that it contained psilocybin. That probable cause eventually arose is dispositive of nothing, however, as it does not address the reasonableness of the detention and investigation which gave rise to the probable cause.
In considering whether the investigation and length of detention of mail is so minimally intrusive that it is reasonable in the absence of probable cause, courts consider whether law enforcement officials could have acted more swiftly. See, e.g., United States v. Allen, 990 F.2d 667, 671 (1st Cir. 1993). We take judicial notice that O’Hare is located in Chicago, which has no shortage of telephones, drug detection dogs or federal magistrates. Thus there appears no constitutionally reasonable justification for shipping the defendants’ package, which they expected would arrive by Express Mail on January 20, 1995, to St. Louis so that Atterbury could telephone Oregon to establish whether the return address was fictitious and afterwards arrange for a drug detection dog to sniff the package. Had these investiga*530tory steps been taken in Chicago, the duration of the investigation would have been significantly shorter, and the five-day delivery delay caused in part by rerouting the package to St. Louis substantially reduced. This is the investigatory diligence that is mandated by the fourth amendment, which seeks to insure that the government’s interference with a person’s possessory interest in property is minimally intrusive where it is premised not upon probable cause, but merely upon a reasonable articulable suspicion of illegal activity. United States v. Place, 462 U.S. at 703, 77 L. Ed. 2d at 118,103 S. Ct. at 2642. That the Postal Service’s internal policies required shipment of the package out of state for investigation is of no constitutional consequence, as it is the Postal Service that must accommodate the fourth amendment and not vice-versa. Accordingly, we conclude that the government’s intrusion upon the instant defendants’ possessory interest in their package was not minimal and thus did not comply with the fourth amendment.
We are cognizant that United States v. Place considered a third factor in determining the reasonableness of a detention and investigation of personal property short of probable cause: information given to the owner or possessor of the item detained for investigation. United States v. Place, 462 U.S. at 709-10, 77 L. Ed. 2d at 122-23, 103 S. Ct. at 2645-46. An Illinois State Police investigative report contained in the instant record shows that defendant Smith called the post office to inquire why the package was late and was told that it was lost. The record does not indicate whether Smith’s telephone inquiry and the post office’s response occurred prior to or after the advent of probable cause. We need not consider the uncertainty of the conversation’s timing and its constitutional significance, however, because of our determination that the nature and duration of *531the detention and investigation alone rendered it unreasonable. See United States v. Place, 462 U.S. at 710, 77 L. Ed. 2d at 123, 103 S. Ct. at 2646 (finding that the nature and length of detention was sufficient to render seizure unreasonable, though considering also what the suspect had been told regarding the detention). It is nevertheless worth observing that defendant Shapiro’s awareness of and expectation that the package would arrive on its delivery date further illustrates the defendants’ possessory interest in the package.
In affirming the judgments of the lower courts suppressing the evidence and quashing defendants’ arrests, we are mindful of the scourge that drugs represent to American society and the importance of the so-called "war on drugs” in eradicating this social calamity. However, our Republic has enjoyed a peaceful and prosperous history for well over two centuries, not because we have increased police powers to achieve ordered liberty, but because we have recognized that ordered liberty requires that police powers be subjugated to the Bill of Rights. It is the latter, and not the former, that guarantees those freedoms the rest of the world associates with our Republic.
CONCLUSION
For the foregoing reasons, the judgment of the appellate court affirming the circuit court’s order suppressing the evidence and quashing defendants’ arrests is affirmed.
Appellate court judgment affirmed.