Dеfendant-appellant Frederick G. Delibac appeals from a judgment entered in the United States District Court for the District of Vermont (Franklin S. Billings, Chief Judge), convicting defendant of various violations of the federal narcotics laws and of using and carrying a firearm during and in relation tо the narcotics offenses. On appeal, we consider Delibac’s challenges to the district court’s (1) admission of evidence pursuant to the “plain view” doctrine; (2) charge to the jury on the definition of reasonable doubt; and (3) rejection of his argument that the Unitеd States Sentencing Guidelines (the “Guide *612 lines”) offend due process because they accord undue authority to prosecutors. Since we find that the district court committed no error, we affirm.
BACKGROUND
On the night of April 27, 1989, the Vermont State Police were in the midst of an investigation of cоcaine trafficking by one Edmund Brooks. Vermont State Police Detective Sergeant Leo Blais, acting in an undercover capacity, arranged for the purchase of two ounces of cocaine from Brooks. Brooks and Detective Roger Mar-cоux, also acting undercover, later met at a shopping center. After a series of events not germane to our discussion, Brooks agreed to sell Detective Marcoux the two ounces of cocaine. Before Brooks was paid for the transactiоn, he was placed under arrest. A search of Brooks’ person revealed a voice-activated paging device, which sounded several times while Brooks was being booked. The arresting officers determined that the telephone numbers left on the pagеr were subscribed to by Delibac and a paging company that leased the pager to Brooks’ employer, Fort Construction Company, an entity owned by Delibac.
Detective Marcoux telephoned Delibac and offered to pay him $1,700 for one of the two ounces of cocaine that Brooks had earlier supplied. In response to a question posed by Detective Marcoux, Delibac stated that Detective Marcoux should not be fearful of meeting Delibac “as long as everything goes alright.” The two agrеed to meet at a parking lot.
The meeting that ensued in the parking lot, which was recorded and played for the jury, was held in Delibac’s automobile. De-libac acknowledged that he had supplied the cocaine furnished by Brooks, accepted the $1,700 from Detective Marcoux, and placed it in the car ashtray. During a conversation concerning future drug transactions, Delibac admitted that he had a gun with him. Detective Marcoux then persuaded Delibac to show him Delibac’s “stash.” Just before the two left the parking lot, Delibaс admitted that he also had a gun located at the “stash.”
The “stash,” as it turned out, was Deli-bac’s office at the Fort Construction Company. In the office, Delibac displayed five ounces of cocaine to Detective Marcoux. Detective Marcoux agrеed to buy the additional cocaine for $1,450 per ounce the next day. Upon exiting the building, Delibac was placed under arrest.
Detective Marcoux immediately recovered the $1,700 from Delibac’s car ashtray and then gave Delibac Miranda warnings. Delibac stated his willingnеss to consent to a search of his office, provided the officers did not “trash” his office and take his personal papers. Detective Blais, who had been monitoring the recorded conversation and had just arrived on the scene, produced a cоnsent-to-search form. Delibac’s consent, as reflected on the executed form, was limited to a search of his office and car and seizure of the five ounces of cocaine in the office. A search of Delibac’s car uncovered a Smith & Wesson Model .357 Magnum (the “Magnum”) located between the driver’s bucket seat and the console.
Detective Marcoux, assisted by other officers including Detective Blais, searched Delibac’s office and seized the five ounces of cocaine. One of the other officers, however, opened a file cabinet drawer and discovered $39,000 in cash. Delibac, who was seated outside his office with Detective Douglas Reisden, told Detective Reisden that more drugs could be found in a desk drawer and that the officers “might as well havе all of it.” Detective Reisden relayed this information to the officers conducting the search. The officers found a quantity of marijuana and eleven additional individually wrapped packages of cocaine in the desk. As Detective Blais walked around the desk, he saw a partially hidden .9 mm. Walther pistol (the “Walther”), located on a cabinet shelf and seized it.
After the search, Delibac was taken to Colchester State Police Barracks where, after being re-advised of his constitutional rights, he admitted that he had recently obtained nine ounces of cocaine from an individual in New York City.
*613 Delibac was charged in a seven-count indictment with conspiring with others to distribute cocaine and to possess with intent to distribute cocaine, in violation of 21 U.S.C. § 846 (Count 1); knowingly and intentionally distributing cocaine, in violation of 21 U.S.C. § 841(a)(1) (Counts 2, 3, and 4); possession with intent to distribute cocaine, in violation of 21 U.S.C. § 841(a)(1) (Count 5); using and carrying a firearm during and in relation to a drug trafficking crime, in violation of 18 U.S.C. § 924(e) (Count 6); and using a firearm during a drug trafficking crime, in violation of 18 U.S.C. § 924(c) (Count 7).
Following a hearing, the district court granted Delibac’s motion to suppress the $39,000 in cash, the eleven additional packages of cocaine and the marijuana, but denied Delibac’s motion to suppress his oral statements, the firearms and the $1,700 in cash recovered from the car ashtray. Delibac cоnceded that he voluntarily consented to the seizure of the five ounces of cocaine displayed to Detective Marcoux. The district court found that Delibac’s oral consent given to Detective Reisden, which was considerably broader than the written consent reflected on the consent-to-search form, was obtained as a result of “presumptive coercion.” As to the firearms, the district court found that the Magnum was properly obtained under the “automobile exception” to the warrant requirement and that the Walther was properly seized under the plain view doctrine.
The government’s subsequent motion to dismiss Counts 2 and 3 of the indictment was granted and the case proceeded to a two-day jury trial. On November 14, 1989, the jury returned a guilty verdict on Counts 1, 4, 5, and 6 and acquitted Delibac on Cоunt 7, which charged him with using the Walther during and in relation to the possession count charged in Count 5. Deli-bac was sentenced to concurrent terms of 51 months on Counts 1, 4, and 5, and a consecutive 60-month term, as mandated by statute, on Count 6. In addition to the 111-month prison term, the district court impоsed a three-year term of supervised release, a $10,000 fine and a mandatory $200 special assessment.
Delibac’s appeal raises numerous issues, only three of which merit discussion. First, Delibac challenges the district court’s conclusion that the “plain view” doctrine permitted the admission of the Walther at trial; he argues that the officers, particularly Detective Blais, were not lawfully in Delibac’s office when the Walther was observed. Second, Delibac alleges that he was denied a fair trial because the district court inсorrectly defined reasonable doubt to the jury. Finally, Delibac claims that the Guidelines unconstitutionally vest prosecutors with the power to sentence.
DISCUSSION
I. The Plain View Doctrine
In
United States v. Barrios-Moriera,
Of the two remaining criteria, only the first concerns us here. Delibac claims that when the Walther was spotted, the officers were no longer legitimately in his office because they had completed their search pursuant to his invalid oral consent.
The officers were initially on the premises pursuant to Delibac’s valid written consent. When they remained on the premises and continued to search after Delibac’s oral consent, which was later determined invalid, it is clear that the officers still “entertained a good faith belief that consent had been obtained.”
United States v. Diaz,
II. The Reasonable Doubt Charge
Delibac also attacks the district court’s reasonаble doubt charge. Significantly, however, no objection to the charge was made at trial. Accordingly, our review is limited by the plain error standard of Fed.R.Crim.P. 52(b).
See United States v. Frady,
In a criminal case the government has the burden of proving each element of the charges against the defеndant beyond a reasonable doubt. You cannot find the defendant guilty unless the government has met this burden of proof.
To support a verdict of guilty, you need not find every fact beyond a reasonable doubt. You need only find that the government has established by the evidence and beyond a reasonable doubt each and every essential element of the crime charged.
A reasonable doubt is a fair doubt, based upon the application of reason and common sense to the evidence presented. The law does not require proof that overcomes all possible doubt, so a reasonable doubt means only a substantial doubt. Similarly, beyond a reasonable doubt does not mean no doubt.
A reasonable doubt may arise from— may arise either from the evidence presented or from the lack of evidence presented.
Once again, a district court has failed to heed our repeated warnings against embellishing upon the standard instruction recommended in 1 Devitt & Blackmar, Federal Jury Practice and Instructions § 11.14 (3d ed. 1977).
See United States v. Gatzonis,
Although we find it necessary to “state our views on this issue” again,
Gatzonis,
III. Sentencing Guidelines
Delibac also mounts a due process challenge to the Guidelines. He notes that prosecutors are empowered to decide which criminal statutes to enforce. Once the charges are made and a conviction is obtained, the district court then has limited discretion at sentencing. Therefore, the argument goes, the Guidelines improperly vest the prosecutor with the power to manipulate the sentence.
*615
We reject this argument. That a particular penalty may be a factor in the prosecutor’s charging calculus is not, in and of itself, a due process violation.
See United States v. Batchelder,
We have considered Delibac’s remaining contentions and find them to be without merit. Accordingly, we affirm the judgment of the district court.
