Aрpellant Richard Ramos Algarin, an attorney, was convicted on eleven counts of conspiracy and other offenses relating to immigration fraud perpetrated through sham marriages between aliens and United States citizens. One of the several witnesses testifying against him was Jose Maria Algarin Rivera, an indicted coconspirator 1 and former employee. When Jose Maria testified, the prosecution introduced and read to the jury an agreement betwеen Jose Maria and the Government providing that he would plead guilty to one of the four counts lodged against him and would cooperate with the Government. In return, the Government would dismiss the remaining three counts and “make no recommendations to the Court with regard to punishment” of Jose Maria.
The day after the jury rendered the verdict against appellant, the Government successfully moved to dismiss all charges *564 against Jose Maria. In support of its motion it said that Jose Maria had cooperated fully with the Government, both before and during the trial and despite threats to his well-being. In oral argument before this court, the Government further explained that it decided suddenly, after the end of appellant’s protracted (seven day) trial, that Jose Maria was a figure of minimal importance who was not worth the effort to punish on one count as originally intended. The government attorneys had travelled to Puerto Rico from Washington and, allegedly, they had “had enough” and wanted to go home without delay. Appellant contends, nonetheless, that, as a matter of due process, the suspicious sequence of events entitles him to a new trial, or at least to an evidentiary hearing on the question of whether the Government had covertly agreed before the verdict in appellant’s case to dismiss all charges against Jose Maria. 2
The Supreme Court’s decision in
Giglio v. United States,
This court has construed
Giglio
to require a two-part showing by one seeking retrial because of an undisclosed plea bargain.
United States v. Bynum,
Applying this two-part test in the present case, we are unable to say that the first part has as yet been established, although the Government’s failure to implement the plea agreement does give ground for suspicion that an undisclosed promise may have been made. The Government vehemently denies any deal with Jose Maria other than that contained in the plea agreement, explaining the dismissal as an abrupt unilateral change of mind made aftеr conclusion of appellant’s trial. If the Government is telling the truth, there would be no impropriety since the witness’ testimony could not have been affected by any undisclosed
*565
promise of aid. On the other hand, the Government’s sudden about-face is troubling. If in fact it had a prior understanding with the witness which went beyond the plea agreement, its conduct here would not only come within
Giglio
but would amount to serious misconduct.
See
ABA Project on Standards for Criminal Justice, The Prosecution Function and the Defense Function § 3.11(a), (b).
See generally United States v. Agurs,
Given the circumstances, we would be reluctant to let matters stand without further inquiry were it not for the fact that appellant totally fails to establish that he comes within part two of the
Giglio
standard. Under this part of the test, the court must determine whether the false testimony could in any reasonable likelihood have affected the judgment of the jury. Here even assuming the
worst
— i.
e.
that there was a secret pre-verdict understanding between the Government and witness to dismiss all, rather than only three of four, сounts — we are unpersuaded that disclosure of this could reasonably have affected the judgment of the jury on the issue of guilt or innocence. Even Government misconduct does not warrant reversal if it is harmless.
3
See
Ramos Colon v. United States Attorney, supra,
The Government’s case against appellant can only be considered overwhelming. He was accused of arranging, for a fee, a series of “marriages between aliens and United States citizens in order to procure permanent residency status for the aliens. Counts one through four of the indictment 4 charged appellant with arranging the formalities of a “divorce” between one Roman Acosta Acosta and his wife of twenty years, Dominga Vargas, citizens of the Dominican Republic. Appellant was-said to have conspired with his clients and with Jose Maria, his employee, to do this and to set up his clients’ subsequent “marriages” to United States citizens Nicolas Garcia Garcia and Norma Iris Velasquez Aviles, in violation of 18 U.S.C. §§ 2, 371, 1001 and 1546. In connection with these machinations, appellant was charged in addition with conspiring to make and making misrepresentations of material facts in United States documents, in violation of 18 U.S.C. § 1001, and with selling a false birth certificate to Roman Acosta Acosta, in violation of 18 U.S.C. § 1427.
Roman Acosta Acosta, Dominga Vargas, Nicolas Garcia Garcia, and Iris Velasquez Aviles all testified on behalf of the Government. Each related how appellant had arranged the marriages (and the divorce, in the case of Acosta and Vargas); that each had been party to a marriage ceremony in which he or she wed a complete stranger introduced through appellant; and that the newly “married” couples never lived together or consummated their marriages after the ceremonies. Dominga Vargas and Roman Acosta testified that their objective in consulting appellant had been to • legalize their status in United States territories. Nicolas Garcia and Iris Aviles testified that they received individual fees for their services. From the testimony of Garcia and Vargas it emerged that the “Petition to Classify Status of Alien Relative for Issuance of Immigrant Visa”, filed by appel *566 lant with the Immigration Service on their behalf, was incorrect in two material respеcts: it falsely indicated that Vargas was living in the Dominican Republic at the time of filing and that she and Garcia had lived together previously at what was in fact Vargas’ then current address in Puerto Rico. An INS agent .also testified about a false birth certificate provided Roman Acosta Acosta by appellant.
Evidence concerning one subsequent marriage arranged by appellant between an alien and a United States citizen was introduced, including testimony of both participants. Related offenses were charged in counts 22 and 23. 5 Counts 15 through 19 dealt with two separate incidents in which noncitizens who had married citizens with the sole purpose of obtaining permanent resident alien status had sought and obtained appellant’s services in completing the formalities (such as filing the appropriate papers with INS). 6
Jose Maria Algarin Rivera’s testimony touched directly on only four of these counts. He gave evidence about thе details of the negotiations between appellant and Roman Acosta Acosta concerning a fee and about appellant’s dickering with Nicolas Garcia Garcia over the fee for his services in marrying Dominga Vargas. He also testified about the brief wedding ceremony between Roman Acosta and Norma Iris Velasquez Aviles and about a gathering after the ceremony — an event that was substantially irrelevant to the elements of the crimes chаrged against appellant. Otherwise, his testimony merely corroborated and added detail to the prior testimony of Acosta, Vargas, Garcia and Aviles. Direct and cross-examination of Jose Maria occupy 24 pages of an 836-page transcript.
Appellant’s assertion that Jose Maria was the “single most important witness” to testify distorts, in our view, the tenor of the evidence. Jose Maria’s testimony was clearly outranked in importance by the accumulated testimony of other government witnesses. Appellant claims that Jose Maria’s testimony was important because it “transcended the counts in which he was named.” Appellant relies on Jose Maria’s status as appellant’s employee, coupled with one statement in his testimony, to support this assertion. That statement, elicited on cross-examination, was as follows:
“Q. And did you ever see Mr. Ramos or hear Mr. Ramos give any special instructions as to getting a woman or a man to get married with an alien?
A. That was done daily. That was a public school.”
But quite apart from this testimony the evidence on each of the eleven counts was solid. The participants in the marriages amply demonstrated that appellant had knowingly or, at the very least, recklessly made these fraudulent arrangements.
See United States v. Sarantos,
Furthermore, Jose Maria’s credibility was already subject to close scrutiny, since it *567 was revealed that he had been fired by appellant and had entered a favorable plea agreement which, while not involving dismissal of all charges, did provide for distinct benefits. Finally, Jose Maria’s testimony was not relied on heavily in closing argument, although defense counsel did seek to impeach it by emphasizing the existence of the plea agreement. We are unable to accept the argument that disclosure of an even more favorable agreement between Jose Maria and the Government would in any reasonable likelihood have affected the jury’s appraisal of appellant’s guilt. 7
Pre-indictment delay
Appellant charges that a delay between commission of the offenses charged (which occurred from 1971 through 1974) and the indictment (issued in May 1976) was an “impermissible" tactic used to amass additional charges against him rather than to pursue investigative leads. His claim must be measured by the due process standard of
United States v. Lovasco,
under which “proof of prejudice is generally a necessary but not sufficient element of a due process claim, and . . . the due process inquiry must consider the reasons for the delay as well as the prejudice to the accused.”
In this case, by contrast, there was nо real prejudice and the delay was explained by the prosecution. Appellant asserts that he was prejudiced because “it was impossible to find associates of witnesses who might provide information relevant for purposes of impeachment [of the witnesses].” Appellant was able to impeach the Government’s case, however, by bringing out on cross-examination what drinking problems and instability existed in the client-witnesses’ backgrounds. We do not think that the possibility — speculative at best — that some undiscovered acquaintance might have provided additional information tending to impeach the client-witnesses is a showing of prejudice sufficient to support a deeper due process inquiry under
Lovasco.
Moreover, the Government submitted a detailed affidavit stating that the delay resulted from personnel shortages in the Puerto Rico Investigations Branch of the Immigration and Naturalization Service and from a felt need for additional evidence. The first explanation speaks for itself. Appellant disputes the second, claiming that the Government had enough evidence to prosecute the 1971-
*568
centered offenses well before 1976. But the Government is entitled to present the strongest possible case. A good faith delay to obtain evidence of other instances of similar wrongdoing that might indicate a scheme or bolster a claim of wrongful intent is not illegitimate.
See
ABA Project on Standards for Criminal Justice, The Prosecution Function and the Defense Function § 3.9. The judgment that additional evidence is needed is committed to the discretion of the prosecutor, not the court.
Id.; see Lovasco, supra,
Severance
For similar reasons, we conclude that it was not improper to deny appellant’s motion to sever the counts of the indictment for separate trials. Severance is a matter of discretion for the trial court; “only a strong showing of prejudice will warrant finding an abuse thereof.”
United States v. Clayton,
Multiplicity
Appellant also complains of multiplicity in all counts of the indictment. The only specific argument he makes, however, is that counts one and three involved one conspiracy and should have been combined in one count, since they both related to the Roman Acosta/Dominga Vargas divorce and remarriages. Even were we to accept this analysis, the appropriate remedy would be to vacate one of the two counts.
See United States v. Honneus,
*569 Insufficient evidence of acts within the statute of limitations
Appellant maintains that, as to counts one and three, no acts in furtherance of the alleged conspiracies were shown to have been done by appellant within the relevant five-year period of limitations. He therefore argues that the counts should have been dismissed. The trial court found, however, that a document concerning count one (a “Petition to Classify Status of Alien Relative for Issuance of Immigrant Visa”) was filed on behalf of Dominga Vargas within the five-year period. The document was prepared and notarized by appellant; its filing was the final step in an effort to obtain resident status for Vargas. This was an overt act in furtherance of a conspiracy of which appellant was shown to have been part and properly could be relied upon to bring the count within the statute of limitations.
United States v. Sarantos, supra,
As to count three, it was shown that appellant obtained Roman Acosta’s divorce from Norma Iris Velasquez Aviles during the five year period. This act is fairly considered part of the entire plan to obtain resident alien status for Acosta and suffices to bring count three within the statute of limitations.
United States v. Sarantos, supra,
Evidence of the prior conviction of Jose Maria Algarin
Appellant contends that the district court abused its discretion by excluding evidence of a 32-year old conviction sustained by Jose Maria Algarin Rivera, the indicted coconspirator who testified against appellant. Fed.R.Evid. 609(b) leaves the decision whether to admit a conviction older than ten years to the discretion of a trial judge and makes advance notice to opposing counsel a prerequisite to its use. Appellant did not give such notice. We find no abuse of discretion.
Instruction on the presumption of truthfulness
Without meaning to indicate our endorsement of such an instruction, we find no reversible error in the district court’s jury instruction that a witness is generally presumed to speak truthfully. The court cаutioned the jury about the dangers of accomplice testimony and discussed fully both the presumption of innocence and the Government’s burden of proving appellant guilty beyond a reasonable doubt.
See Cupp v. Naughten,
Affirmed.
Notes
. The participants in the marriages were all named coconspirators but were not indicted. Two other coconspirators were indicted. These were Jose Maria Algarin Rivera and appellant’s brother-in-law, Remigio Rodriguez Cancel. Both worked with appellant at his office. Rodriguez Cancel’s trial was severed from appellant’s; he later pleaded guilty to charges relating to immigration fraud.
. Appellant stated at argument on appeаl that he was not aware of the dismissal of all charges against Jose Maria until one year after conviction, by which time the present appeal was pending in this court. Appellant has never moved for a new trial or taken any action to bring his present contention to the district court’s attention; thus, apart from any inference to be drawn from the disparity between the terms of the plea agreement and the later dismissal of all charges against Jose Maria, there is no evidence in the record below shedding light in this matter.
. Methods of disciplining attorneys other than setting free the guilty or re-enacting an insubstantially flawed trial are available.
See Ramos Colon
v.
United States Attorney,
. The original indictment was filed on May 20, 1976, but was superseded by an indictment of July 7, 1976. We refer here of course to the counts of the later indictment.
. These counts stemmed from a marriage arranged by appellant between one Santa Illumi-nada Gonzalez (de Jesus) Diaz, a citizen of the Dominican Republic, and Alfonso Guerrero Maldonado, a United States citizen. They charged appellant with conspiring with Gonzalez de Jesus and Guerrero Maldonado to violate 18 U.S.C. §§ 2, 371, 1001 and 1546.
. Counts 15 and 16 centered around the filing of a “Petition to Classify Status of Alien Relative for Issuance of Immigrant Visa” containing false stаtements concerning the “marriage” of Virginia Glasgow Granderson, a citizen of Trinidad, and Longino Berrios Fernandez, a United States citizen. They charged a conspiracy to violate 18 U.S.C. §§ 2, 371, 1001 and 1546.
Counts 17, 18, and 19 centered on the attempts of one Rudicindo Castillo Nunez, a citizen of the Dominican Republic, to attain permanent resident alien status by marrying one Gregoria Rodriguez Romero, a United States citizen previously unknown to Castillo Nunez. These counts too charged а conspiracy to violate §§ 2, 371, 1001, and 1546.
. The Fifth Circuit’s holding in Blankenship v. Estelle, 545 F.2d 510 (5th Cir. 1977), is not to the contrary. There the Government agreed to dismiss all charges against the state’s two principal witnesses, accomplices of the defendant. This agreement was concealed during trial; the prosecution let stand the false impressions that both witnesses would be tried and that neither was testifying in exchange for any lenity. Only the testimony of these two witnesses directly linked the defendant with the crime; the state’s “ ‘corroborating’ еvidence was slim.” The defendant had denied any connection with the robbery and had presented his wife as an alibi witness. Thus “the issue at trial boiled down to a credibility contest between [defendant] and [the] State witnesses [his two alleged accomplices.]” Id. at 512. The court held, on a petition for habeas corpus, that the district court should have held an evidentiary hearing and determined the facts surrounding the pretrial plea arrangement. Here, by contrast, the Government’s evidence was very strong and directly implicated appellant. Jose Maria’s testimony, while vigorous, was merely corroboratory and pertained to only four of eleven counts. An examination of the record omitting Jose Maria’s testimony indicates that appellant would still have been convicted had an immunity agreement been revealed. It is extremely unlikely that the jury’s judgment would have been affected by disclosure of the fact that the charges against Jose Maria, having already been reduced from four counts to one, would be dropped entirely.
