* Pursuant to Local Rule 47.5, the court has determined that

this opinion should not be published and is not precedent except

under the limited circumstances set forth in Local Rule 47.5.4. UNITED STATES COURT OF APPEALS

FOR THE FIFTH CIRCUIT

No. 96-30337

UNITED STATES OF AMERICA,

Plaintiff-Appellee,

VERSUS

JOSE LUIS GARCIA,

Defendant-Appellant.

Appeal from the United States District Court

For the Eastern District of Louisiana

(95-CR-66-N)

May 13, 1997

Before EMILIO M. GARZA, PARKER, and DENNIS, Circuit Judges.

PER CURIAM: *

Jose Luis Garcia (“Garcia”) appeals to this court arguing that

h e did not knowingly and voluntarily waive his right to have an

attorney represent him at his sentencing for a drug conviction and

that his sentence result ed from an incorrect application of the2

sentencing guidelin es. Finding no reversible error, we affirm

Garcia’s sentence.

FACTS AND PROCEEDINGS BELOW

Garcia was convicted of conspiring to distribute cocaine, in

violation of 21 U.S.C. § 841(a)(1) and 21 U.S.C. § 846 and of

possession with the intent to distribute cocaine, in violation of

21 U.S.C. § 841(a)(1) and 18 U.S.C. § 2.

After Garcia’s trial, on February 2, 1996, Garcia’s attorney

moved to withdraw as Garcia’s attorney, base d upon his client’s

wishes. On February 7, 1996, following a request for appointed

counsel, Garcia was found by a magistrate judge not to be indigent.

Garcia did not seek review of the magistrate’s determination. The

district court granted Garcia’s trial counsel’s motion to withdraw

on March 15, 1996. Garcia appeared without counsel for sentencing

on March 20, 1996. Prior to sentencing, the district court asked

Garcia if there was any reason not to proceed with sentencing.

Garcia responded “Just go ahead. Let me finish up.” He did not

renew his request for appointed counsel nor did he ask for

additional time to retain counsel.

Garcia was sentenced to a term of life imprisonment and to

concurrent terms of 360 months imprisonment for each of five counts

of the indictment.

DISCUSSION

Garcia does not contest any aspect of his conviction, but3

contests the factual findings underlying the district court’s

application of the Sentencing Guidelines and his waiver of legal

representation at sentencing.

A.

Garcia’s life sentence was a mandatory sentence based on

Garcia’s two prior felony dru g trafficking convictions. His

sentence for the possession with intent to distribute was

determined in accordance with the Sen tencing Guidelines based on

the district court’s determination that Garcia’s relevant conduct

included 216 kilograms of cocaine and that he was a leader of a

criminal enterprise involving five or more participants. Our

review concerns whether the district court committed clear error in

its determinations. S ee United States v. Ismoila

, 100 F.3d 380,

394 (5th Cir. 1996), petition for cert. filed

, -- U.S.L.W.

-- (Mar.

31 1997) (No. 96-8492). Garcia’s argument against the district

court’s factual findings is essentially a contention that the

testimony of Garcia’s co-conspirators was not credible. We

customarily leave credibility choices to the fact-finder and find

no reason not to do so here.

Garcia offers a third challenge to the calculation of his

sentence. He contends that the district court’s failure to conduct

a colloquy under 21 U.S.C. § 851(b) resulted in an improper

enhancement of his sentence and warrants remand for resentencing.

Garcia’s argument fails. He made no effort to contest the validity4

of his prior convictions, rendering literal compliance with §

851(b) unnecessary, United States v. Steen

, 55 F.3d 1022 (5th Cir.

1995), and Garcia has made no suggestion that the district court’s

omission precluded him from prese nting a particular challenge,

rendering any alleged error harmless, United States v. Garcia

, 954

F.2d 273, 277 (5th Cir. 1992).

B.

As we have stated before, a colloquy between a defendant and

a trial judge is the preferred approach to ascertaining that a

waiver of counsel is voluntary, knowing and intelligent, Wiggins v.

Procunier

, 753 F.2d 1318, 1320 (5th Cir. 1985), but such is not

re quired to demonstrate that a defendant’s waiver is voluntary,

knowing and intelligent. The failure of a defendant to secure

counsel within a reasonable time operates as a waiver of the right

to counsel. United States v. Mitchell

, 777 F.2d 248, 257-58 (5th

Cir. 1986) (citing cas es); see also Neal v. Texas , 870 F.2d 312,

315 (5th Cir. 1989). Garcia himself requested that his trial

counsel no longer represent him and he had known for over a month

prior to sentencing that he was not eligible for appointed counsel.

He appeared for sentencing without an attorney, made no suggestion

that he wanted one, and urged the district court to proceed with

sentencing. Having reviewed the record, we find no indication that

Garcia’s waiver was anything but volu ntary, knowing and

intelligent.5 CONCLUSION

For the foregoing reasons, we AFFIRM Garcia’s sentence.