In this criminal appeal, the Government challenges the district court’s downward departure from the otherwise applicable statutory mandatory minimum sentence of 10 years’ imprisonment, arguing that no recognized exception to the statutory minimum applies in this case. Bobby Phillips, Jr., cross-appeals the district court’s denial of his motion to suppress evidence of crack cocaine and other items seized from a backyard storage shed located on property belonging to another individual. For the following reasons, we affirm the district court’s denial of Phillips’ motion to suppress, but reverse the district court’s sentencing determination, vacate the sentence, and remand for resentencing consistent with this opinion.
FACTUAL AND PROCEDURAL BACKGROUND
On the evening of July 14, 2000, San Antonio Police Department (“SAPD”) Officer Nick Stromboe, working patrol on the east side of San Antonio, Texas, saw Bobby Phillips exit a vehicle driven by Anthony Davis at the corner of St. Martin and Nolan streets. Phillips, wearing yellow gloves, carried in one hand a grocery bag which was weighed down by its contents *492 and a box of sandwich baggies in his other hand. From his position about 20 feet away from Phillips, Officer Stromboe observed what appeared to be crack cocaine powder on Phillips’ gloves. Although Officer Stromboe gave Phillips verbal orders to approach him, Phillips looked at Strom-boe, turned, and walked away, westbound down an alley.
Officer Stromboe followed Phillips down the alleyway to the rear property line of a single family residence and backyard shed owned by Davis’ great-grandmother, Annie Thompson. Thompson’s property was not enclosed; specifically, the border between her property line and the alley consisted of a fence, the shed, a four-foot opening, and a dilapidated three-foot fence. Officer Stromboe observed Phillips walk over to the shed, lift the corner of its tin roof, and drop the grocery bag into the shed. Stromboe then saw Phillips discard his gloves and the box of baggies in a nearby trash can, also situated along the border of the Thompson property adjacent to the alleyway. Phillips approached Stromboe, who then placed Phillips in handcuffs. As Stromboe and Phillips were walking back to the patrol car, Stromboe asked the defendant what he had thrown in the shed. Phillips replied that the bag had just contained marihuana.
Officer Stromboe momentarily waited for backup, then proceeded to retrieve the evidence which Phillips had discarded in the shed and the trash can. Accompanied by Officer Jeffrey Woolridge, Officer Stromboe walked to the shed and attempted to lift its roof, but was unable to do so.
Meanwhile, Thompson, the owner of the residence, had already observed from her window that Phillips and Davis were handcuffed and that about four officers were at the scene. Thompson testified that a “lady officer” then told her that she would lose her home if she did not allow the officers to look inside the shed. After the officers were unable to retrieve the evidence by lifting the roof of the shed, they asked Thompson if she would open the front door of the shed. Thompson responded “Certainly,” went inside to obtain the key, returned, and opened the door to the shed.
Because the shed was cluttered with items that completely blocked access to the corner where the grocery bag lay, Strom-boe took a chair from the backyard, placed it next to the corner of the shed, and stood on it. Stromboe was then able to open the roof of the shed, reach in, and retrieve the only grocery bag in that corner. Strom-boe opened the bag and found a scale and five separate bags each containing a substance which later field-tested positive for cocaine base. Stromboe also recovered the yellow gloves and the baggies from the trash can.
After the evidence was recovered, Phillips was transported to the SAPD substation. Phillips was advised of his constitutional rights both upon arrival and when subsequently interviewed by a Drug Enforcement Administration (“DEA”) agent. During this interview, Phillips admitted that the baggies of cocaine found in the shed belonged to him. The Thompson residential property is within 1,000 feet of the real property comprising a public elementary school.
On August 16, 2000, Phillips was charged by grand jury indictment of possessing with intent to distribute more than five but less than fifty grams of cocaine base, in violation of 21 U.S.C. § 841(a)(1) and 841(b)(1)(B) (Count 1), and possessing with intent to distribute more than fifty grams of cocaine base, in violation of 21 U.S.C. § 841(a)(1) and 841(b)(1)(A), within 1,000 feet of a school yard, in further *493 violation of 21 U.S.C. § 860 (Count 2). 1 Phillips moved to suppress the cocaine and items seized from the shed located on the Thompson property. 2 Following an evi-dentiary hearing, the district court initially granted Phillips’ motion to suppress, finding that the defendant had standing to assert a Fourth Amendment privacy interest in the Thompson residence which extended to the backyard shed, based upon a longstanding social and familial relationship that existed between the Phillips and Thompson-Davis families. On reconsideration, however, the district court withdrew its order granting Phillips’ suppression motion and entered a new order denying the defendant’s motion, adopting in part the factfindings and legal conclusions proposed by the Government. Specifically, the district court concluded that Phillips lacked standing to contest the constitutionality of the warrantless search. Phillips pleaded guilty to Count 2 of the indictment, conditioned on his right to appeal from the district court’s denial of his motion to suppress. 3
The Presentencing Report (“PSR” or “report”) calculated Phillips base offense level under USSG § 2D1.1 (2000), 4 recommending a base offense level of 32 for the defendant’s § 841(a)(1) and 841(b)(1)(A) offense involving more than 50 grams but less than 150 grams of cocaine base. See USSG § 2D1.1 (4). Phillips’ PSR also recommended a two-level enhancement pursuant to USSG § 2D1.2 (a)(1) (Special Offense Characteristics) for the defendant’s commission of the relevant offense near a protected location (here, the elementary school). Phillips’ total offense level of 34, coupled with a Criminal History Category of I, yielded a Sentencing Guideline range of 151 to 188 months’ imprisonment.
At sentencing, the district court granted Phillips’ request for a 3-level reduction for acceptance of responsibility,
see
U.S.S.G. § 3E1.1 (a)
&
(b) (2001), over the objection of the Government. The adjusted total offense level of 31 produced a Sentencing Guideline range of 108 to 135 months’ imprisonment. The Government pointed out and the district court acknowledged that Phillips’ § 841(a) violation involving “50 grams or more of a ... substance which contains cocaine base” carried a mandatory statutory minimum term of 10 years’ imprisonment,
5
see
21 U.S.C. § 841(b)(l)(A)(iii), narrowing the applicable penalty range to between 120 and 135 months’ incarceration. Though the district court observed that no legal basis existed to depart from this 10-year statutory minimum sentence, the district court nonetheless sua sponte departed downward by 60 months and orally sentenced Phillips to 60 months’ imprisonment, 10 years’ supervised release, and a $100 mandatory special assessment. The Government objected to the downward departure and requested that the district court articulate for the record the specific basis for its sentencing determination. Citing
Koon v. United States,
DISCUSSION
On appeal, the Government challenges the district court’s 60-month downward departure from the applicable 10-year statutory minimum sentence; Phillips argues in his cross-appeal that the district court erred in denying his motion to suppress the allegedly illegally obtained evidence and seeks reversal of his conviction or, alternatively, that his sentence be affirmed. We address these issues in the order the district court ruled upon them.
I. Motion to Suppress
A. Standard of review
In reviewing the denial of a motion to suppress, “we review the district court’s factual findings for clear error, and its legal conclusions, including its ultimate conclusion as to the constitutionality of the law enforcement action,
de novo.’
”
United States v. Reyes,
B. Phillips’ Fourth Amendment privacy interest in the Thompson property
In his cross-appeal, Phillips argues that the district court erred in denying his motion to suppress the evidence discovered in the shed located on the Thompson property, insisting that he has standing to contest the allegedly illegal search because he had a reasonable expectation of privacy in his friend’s residence, including the backyard shed, based on the longstanding familial relationship between the Phillips and Thompson-Davis families. 7 The Government counters that Phillips has no standing to contest the search because his privacy interest in the Thompson residence was not sufficient to give rise to Fourth Amendment protections. 8 We agree with the Government.
*495 The gravaman of Phillips’ argument is that he, and his entire family, are life-long friends of the Thompson-Davis family. Testimony at the suppression hearing revealed that Phillips and Davis were like brothers and the two families took trips together, threw parties together, and generally acted like one family. Although Phillips frequently had spent the night at the Thompson home in the past, he had not done so in the five or six months preceding the night in question. As for the shed, Phillips testified that as kids, he and Davis would sometimes go into the shed “when it was raining and stuff, ... to listen to the radio.” Thompson, however, testified that she had exclusive use of the shed, that she used the shed to store Christmas decorations, and that she had the only key to the shed, which she kept locked. Thompson also testified that others could not use, enter, or store anything in the shed without first obtaining her permission to do so, and that Phillips never obtained permission to use the shed for any purpose, let alone for the storage of cocaine. Finally, Thompson’s testimony revealed that she had thought the shed contained only her own personal belongings and was wholly unaware that Phillips had stored cocaine in the shed until she was informed of that fact while on the witness stand.
Nonetheless, Phillips argues that the longstanding social and familial relationship between the Phillips and Thompson-Davis families suffices to establish his reasonable expectation of privacy in the Thompson shed. In support of this proposition, Phillips primarily relies upon
Minnesota v. Olson,
“Fourth Amendment rights are individually held and cannot be asserted solely by reference to a particular place;” rather, they may be enforced only by persons whose own protection under the Amendment has been violated.
Vega,
As the Government correctly points out, however, on the particular facts of this case,
Olson
and its progeny do not compel the conclusion that Phillips had a reasonable expectation of privacy in the Thomp
*496
son shed. In
Vega,
we observed that the Supreme Court has recognized that “the overnight guest ‘typif[ies] those who may-claim the protection of the Fourth Amendment in the home of another.' ”
In this case, as in
Carter
and
Vega,
there is no record evidence that shows that Phillips utilized the shed for anything other than a commercial purpose — the storage of cocaine for later distribution — on the evening in question. Although, as Phillips correctly points out,
Olson
does not require that he be an “overnight” guest of the Thompsons in order to establish a legitimate privacy interest in the Thompson residence, its yard, and the shed, we find that his attempt to distinguish the results reached in
Carter
and
Vega
on the basis of his longstanding familial relationship with the Thompson-Davis family is unpersuasive under the circumstances presented in this case.
Olson
stands for the proposition “that any guest, in appropriate circumstances, may have a legitimate expectation of privacy when he is there ‘with the permission of his host, who is willing to share his house and his privacy with his guest.’ ”
United States v. Fields,
*497 a “legitimate” expectation of privacy by definition means more than a subjective expectation of not being discovered. A burglar plying his trade in a summer cabin during the off season may have a thoroughly justified subjective expectation of privacy, but it is not one which the law recognizes as “legitimate.” His presence ... is “wrongful”; his expectation is not “one that society is prepared to recognize as reasonable.”
II. Sentencing calculation
We next address the Government’s argument that the district court erred as a matter of law when it departed below the otherwise applicable 10-year mandatory statutory minimum sentence of imprisonment based on the existence of mitigating factors not adequately taken into account by the Sentencing Guidelines.
A. Standard of review
This Court reviews
de novo
the question whether the district court’s departure from the applicable Sentencing Guideline range was “based on a factor that ... (ii) is not authorized under section 3553(b); or (iii) is not justified by the facts of the case.” 18 U.S.C. § 3742(e)(3)(B)(ii)-(iii);
see United States v. Bell,
B. The propriety of the downward departure from the statutory minimum sentence
The district court sentenced Phillips to,
inter alia,
a term of imprisonment of 60 months. Pursuant to § 841(b)(1)(A), a person who commits a violation of § 841(a) involving “50 grams or more of a ... substance which contains cocaine base,” 21 U.S.C. § 841(b)(l)(A)(iii),
“shall
be sentenced to a term of imprisonment which may not be less than 10 years.... ”
Id.
§ 841(b)(1)(A) (emphasis added). Phillips pled guilty to possession with intent to distribute cocaine base, in violation of § 841(a)(1), and further admitted in his plea that he was accountable for at least 50 grams of that narcotic. As noted above, the district court acknowledged that Phillips was responsible for a quantity of co
*498
caine in excess of the 50 grams required to trigger the 10-year statutory minimum sentence and that no legal basis existed for a downward departure, yet refused to impose that sentence, citing USSG § 5K2.0 and
Koon,
Generally, a district court must impose a sentence in accordance with the ranges prescribed by the Sentencing Guidelines for the relevant offense conduct.
See
18 U.S.C. § 3553(a)(4)(A). A district court may, however, deviate from the applicable Guidelines range where “there exists an aggravating or mitigating circumstance of a kind, or to a degree, not adequately taken into consideration by the Sentencing Commission in formulating the guidelines....” 18 U.S.C. § 3553(b); USSG § 5K2.0. Although § 5K2.0 explicitly refers only to departures from the
Guidelines,
using such phrase no less than eight times, Phillips first contends that this provision, as interpreted by the Supreme Court in
Koon,
“Federal law explicitly cabins the district court’s discretion in departing downward ... from a statutory minimum” sentence.
United States v. Alvarez,
Though this Court has yet to rule expressly on whether these two subsections of § 3553 represent the exclusive routes to depart below the statutory minimum, we now join all other circuits which have addressed this issue in concluding that they are.
See, e.g., Medley,
In this case, Phillips does not dispute that § 3553(e) could not have provided a basis for the district court’s departure because the Government did not file a substantial-assistance motion pursuant to that subsection and Phillips has not challenged the constitutionality of the Government’s failure to so move.
See Solis,
Under § 3553(f), a district court may sentence a defendant below a statutory minimum if the defendant meets five mandatory criteria. In addition to these criteria, application of § 3553(f)’s safety valve is explicitly limited to the following offenses: 21 U.S.C. §§ 841, 844, 846, 960, and 963. Conspicuously absent from this list is § 860, the offense for which Phillips was convicted. This Court has yet to address whether a § 860 offense is nonetheless eligible for safety-valve treatment. However, all other circuits which have addressed this question have concluded that the safety-valve provisions do not apply to a § 860 offense.
See, e.g., United States v. Kakatin,
In sum, we find that the plain language of the relevant statutory and sentencing provisions and the jurisprudence of this Court and other circuits compels the conclusion that § 5K2.0 does not provide a basis for departure from a statutory minimum sentence. Accordingly, in the absence of one of the exceptions set forth in § 3553(e) or § 3553(f), “or such other exceptions as Congress may create,” the district court may not downwardly depart from a term of imprisonment or other penalty below the minimum mandated by the statute pursuant to which the defendant was convicted. Because neither of the two recognized exceptions applied on the facts presented in this case, we conclude that the district court lacked authority to impose a sentence less than the statutory mandatory minimum.
See, e.g., Medley,
CONCLUSION
For the foregoing reasons, we AFFIRM the district court’s order denying Phillips’ motion to suppress evidence allegedly illegally obtained from the Thompson shed, AFFIRM Phillips conviction, but REVERSE the district court’s sentencing determination, VACATE Phillips’ sentence, and REMAND for resentencing in accordance with this opinion.
AFFIRMED in part, REVERSED in part, VACATED in part, and REMANDED.
Notes
. The Government later dismissed Count 1 of the indictment.
. Phillips' motion did not seek to suppress the evidence recovered from the trash can.
. Though Phillips did not have a written plea agreement, the defendant made the entry of his guilty plea conditional by expressly reserving the Fourth Amendment issue for appeal during the district court's Rule 11 colloquy.
. The November 1, 2001 edition of the Sentencing Guidelines Manual was used in preparing the PSR in this case.
. A violation of 21 U.S.C. § 860, to which Phillips also pled guilty, statutorily mandates the imposition of a minimum sentence of 1 year in prison, "[ejxcept to the extent," as here, § 841(b) "otherwise provide[s] ... for a greater minimum sentence...."
. The district court cited as mitigating factors not adequately taken into account by the Guidelines the following circumstances it deemed present in this case: (1) the officers had conducted an illegal warrantless search; (2) Phillips’ delay in providing information to assist the prosecution was due to his pursuit of viable suppression issues; (3) a disparity existed in the guidelines' treatment of "crack” cocaine versus "powder” cocaine; (4) a disparity existed between Phillips’s arrest and the failure to charge Phillips; (5) a disparity existed between Phillips's arrest and the Government’s decision not to charge Davis; and (6) Phillips’s post-arrest rehabilitation efforts.
. In his brief and at oral argument, Phillips also protests that the district court erroneously focused its analysis on the extent to which the defendant had the right to exclude others from the shed in determining that the defendant lacked a privacy interest that extended to that structure and thus lacked standing to challenge the constitutionality of the search (and subsequent seizure of the cocaine). Even if we were to agree with Phillips, we nonetheless may affirm the district court on any basis supported by the record, which, as detailed below, in this case compels affir-mance of the district court’s evidentiary ruling.
.The Government also argues, as it did before the district court, that Thompson’s voluntary consent to the search provides an alternative basis for the district court's denial of *495 the suppression motion. Because we agree with the district court’s ultimate conclusion that Phillips had "no standing” to contest the allegedly illegal search on the facts presented, we need not address the voluntariness of Thompson's consent.
. In
Bell,
we held in part that the standard of review set forth in Section 3742(e) of the Prosecutorial Remedies and Other Tools to end the Exploitation of Children Today Act of 2003 ("Protect Act”), Pub.L. 108-21, 117 Stat. 650 (2003),applies retroactively in cases such as the instant one in which the defendant's sentencing and the filing of notice of appeal occurred prior to the Protect Act’s April 30, 2003, effective date.
See Bell,
