At a jury trial in the district court, defendant was convicted of conspiracy to distribute and distribution of a controlled substance 1 in violation of 21 U.S.C. §§ 841 and 846. On appeal, defendant raises a variety of issues, all of which are without merit.
First, defendant argues that basic notions of fundamental fairness were violated when the Assistant United States Attorney refused to call defendant as a witness before the grand jury that was considering his indictment. We disagree. A grand jury proceeding is not an adversary proceeding in which the guilt or the innocence of an accused is adjudicated.
See,
e.
g., United States v. Calandra,
Second, defendant argues that his Sixth Amendment right to a speedy trial was violated by the “delay” between his arraignment and his trial. This second argument of defendant is patently frivolous. As is conceded by both parties, the “delay” between defendant’s arraignment and his trial, excluding any delay attributable to defendant himself, was 111 days. Thus, the length of the “delay” challenged by defendant satisfied the 120-day requirement of the speedy trial plan of the district court in which defendant was tried.
2
Further, noth
*320
ing in the record indicates (and defendant has made no attempt to show) that the “delay” in question either prejudiced defendant in the preparation of his case, or was the result of any misconduct on the part of the government.
See Barker v. Wingo,
Third, defendant argues that the district court abused its discretion when it appointed an interpreter to allow a government informant to testify in Spanish, his native language. Again we fail to find any merit in defendant’s argument. An appointment of an interpreter lies within the sound discretion of a trial judge, and such appointment will be disturbed on appeal only if the judge has abused that discretion.
See, e. g., United States v. Barrios,
Fourth, defendant argues that the trial judge erred when he ordered defendant to provide the government with a transcript of a telephone conversation between defendant and the government informant. In support of this argument, defendant contends that the conversation transcript, made by defendant’s counsel from a tape recording provided by the government,
3
was protected from disclosure under the doctrine of “work product.”
4
In advancing this argument, defendant fails to recognize the fact that the doctrine of work product involves a qualified and not an absolute privilege. In other words, a counsel’s work product is protected by a privilege that is subject to waiver by its holder.
See, e. g., United States
v.
Nobles,
Respondent can no more advance the work product doctrine to sustain a unilateral testimonial use of work product materials than he could elect to testify in his own behalf and thereafter assert his Fifth Amendment privilege to resist cross-examination on matters reasonably related to those brought out in direct examination.
Finally, defendant argues that the district court abused its discretion when it limited defendant’s cross-examination of the government informant. More specifically, defendant argues that the district court should have allowed defendant to inquire more fully into the particulars of the informant’s previous work with the Drug Enforcement Administration.
The extent of cross-examination is within the sound discretion of the trial judge who must exercise a reasonable judgment in determining when counsel has exhausted an appropriate subject of inquiry. In
Skinner
v.
Cardwell,
The test for whether cross-examination about a relevant topic was effective, i. e., whether the trial court has abused its discretion, is whether the jury is otherwise in possession of sufficient information upon which to make a discriminating appraisal of the subject matter at issue. When the refused cross-examination relates to impeachment evidence, we look to see whether the jury had sufficient information to appraise the bias and motives of the witness.
In arguing that the district court in the present case abused its discretion, defendant cites the case of
United States v. Leja,
Past rewards are actually more important than remuneration for the case at hand, since pay for the case at hand comes after the work is done. Evidence of past rewards shows what an informant can expect by making a case. It is in making a case that any deceit occurs, for once the case is made, and an investigation terminated by arrest, the testimony is virtually assured.
After a careful review of the record in the present case, we conclude that “. the jury had sufficient information to appraise the bias and motives . . .’’of the DEA’s informant.
Skinner v. Cardwell, supra,
*322 For the reasons stated above, the judgment of the district court is affirmed.
Notes
. The facts of the present case are not important for the purposes of this appeal. Suffice it to say that defendant was implicated in a conspiracy to distribute and a distribution of heroin through the work of two government witnesses — Catalino Nunez, an undercover informant for the Drug Enforcement Administration (DEA), and Julius Baretta, a special agent of the DEA.
. Defendant was arraigned on December 29, 1977, in the Eastern District of California. The Speedy Trial District Plan for that district provides that, if an arraignment occurs on or after July 1, 1977, but before July 1, 1978, the trial must commence within 120 days of the arraignment.
. The taped telephone conversation was between defendant and the government informant Nunez. The parties spoke in Spanish. Apparently, defendant’s counsel had his secretary, who spoke Spanish, make a written translation of the conversation in English. The district court ordered defendant to disclose at trial the transcript of his secretary’s English translation.
. For a discussion of the “work product” privilege, see 4 J. Moore, Federal Practice ¶ 26.63.
. In ordering defendant to disclose the conversation transcript, the district court relied, in part, on Rule 106, Fed.R.Evid. Rule 106 provides:
When a writing or recorded statement or part thereof is introduced by a party, an adverse party may require him at that time to introduce any other part or any other writing or recorded statement which ought in fairness to be considered contemporaneously with it.
