KERN, Associate Judge:

A jury found appellant guilty of assault with a dangerous weapon (D.C. Code 1973, § 22-502) and assault with intent to commit robbery (D.C. Code 1973, § 22-501). On appeal he argues that the trial court erred (a) when it denied his motion to dismiss the indictment for lack of a speedy trial, and (b) when it denied his motion to suppress the complaining witness' show-up identification testimony. We disagree and affirm the convictions.

Manifestly, the right to a speedy trial is a fundamental constitutional right. The Supreme Court has warned, however, that it is "impossible to determine with precision when the right has been denied." Barker v. Wingo, 407 U.S. 514, 521, 92 S.Ct. 2182, 2187, 33 L.Ed.2d 101 (1972). Appellant's argument, therefore, must be evaluated according to the Barker v. Wingo four-pronged balancing test, which weighs: (1) the length of the delay; (2) the reasons for the delay; (3) the assertion of the right by the defense; and (4) any resulting prejudice to the accused. Id. at 530, 92 S.Ct. 2182.

In this jurisdiction, it has been held that a year or more between arrest and trial gives prima facie merit to a claim that an accused has been denied the right to a speedy trial. Branch v. United States, D.C.App., 372 A.2d 998, 1000 (1977). See United States v. Mack, D.C.App., 298 A.2d 509, 511 (1972); Hedgepeth v. United States, 124 U.S.App.D.C. 291, 364 F.2d 684 (1966). After one year, a heavy burden shifts to the government to justify the delay. Branch v. United States, supra, 372 A.2d at 1000. In the instant case, appellant and a companion were arrested within minutes of an attempted robbery of a taxi driver on May 27, 1971, but appellant was not brought to trial for the crime until April 30, 1976. Clearly, a lapse of fifty-nine months between arrest and trial preponderates in favor of the appellant. Length of time is not, however, the sole determinant in judging whether a defendant has been denied a speedy trial. See Barker, supra 407 U.S. at 521-22, 92 S.Ct. 2182.

As to the second prong of the Barker analysis, the reasons for the delay, the record in the instant case reveals an unusual sequence of events. At the time of the arrest, appellant gave his name to the police as Alford L. McNeil. He was arraigned under that name and released on his own recognizance. Thereafter, he failed to appear at the preliminary hearing on the case, and on October 5, 1971, a federal grand jury returned an indictment charging Alford L. McNeil with assault with intent to commit robbery, and related charges.

Meanwhile, appellant fled to North Carolina and was arrested and imprisoned there on different charges. Throughout the proceedings in that case, appellant used the name of John Merrick Williams.

In early December, 1975, District of Columbia authorities located appellant in the North Carolina prison through the use of fingerprints. At his subsequent arraignment, appellant asserted that he was not the person who had been arrested in 1971, but an additional fingerprint examination revealed that the prints belonged to the same person. Later, when the prosecution sought a court-ordered modification of the indictment to correct appellant's first name, appellant would not acquiesce in this amendment. The government therefore submitted the case to the grand jury for reindictment, and a new indictment was issued on April 6, 1976, in the name of Harold L. Cates, a/k/a Alford McNeil, a/k/a John M. Williams.

Appellant admits that his own actions contributed to the prosecution's delay in bringing him to trial (Brief at 6). He argues, however, that the government failed to make good-faith efforts to locate him. Specifically, he contends that if the prosecution and police had earlier invoked the assistance of the Federal Bureau of Investigation, he would have been traced to the North Carolina prison where he was serving his sentence. In addition, he cites cases which hold that imprisonment in other jurisdictions does not excuse delay in bringing a defendant to trial. We find the cases to be distinguishable and the argument to be without merit.

We recognize that the Supreme Court has cited negligence and over-crowded courts as a "neutral reason" for delay which must nonetheless be assessed against the government but which "should be weighted less heavily" than a deliberate attempt to delay the trial. Barker, supra, 407 U.S. at 531, 92 S.Ct. 2182. See Strunk v. United States, 412 U.S. 434, 436, 93 S.Ct. 2260, 37 L.Ed.2d 56 (1973). An understaffed prosecutor's office that is unable rapidly to follow up on fugitives (as the government admitted was the case here) may be a factor which could be weighed against the government. It is, however, doubtful that the government can be considered to have been negligent in the instant case. The prosecution obtained an indictment for Alford McNeil and located and arrested the true Alford McNeil within a reasonable length of time. Subsequently, the government sought swift reindictment each time it learned of appellant's various names.

Even if we were to assume arguendo that the government was negligent, in this case appellant's own actions more than counterbalanced the weight to be accorded any presumed inefficiency on the part of the prosecution. Appellant gave a false name when he was arrested; he became a fugitive from the District of Columbia; in order to conceal his true identity from law enforcement officials, he used another name when he was arrested in North Carolina; and, although he was paroled for approximately eleven months in 1973, he made no effort to return to the District to clear up the pending charges. Courts have held that "[i]t is well established that where the defendant's unlawful flight or hiding out is the reason for the delay in his trial, he is held to have waived his right to a speedy trial." United States v. Judge, 425 F. Supp. 499, 502 (D.Mass. 1976), citing United States v. Cartano, 420 F.2d 362, 364 (1st Cir.), cert. denied, 397 U.S. 1054, 90 S.Ct. 1398, 25 L.Ed.2d 671 (1970); Dickey v. Florida, 398 U.S. 30, 48, 90 S.Ct. 564, 26 L.Ed.2d 26 (1970) (Brennan, J., concurring); 57 A.L.R.2d 318; Speedy Trial Act, 18 U.S.C. § 3161(h)(3) (1975). See also United States v. Thor, 512 F.2d 811, 815 (5th Cir.), cert. denied, 423 U.S. 1014, 96 S.Ct. 445, 46 L.Ed.2d 384 (1975). Thus, appellant's fugitivity and his use of three names during the period between arrest and trial must be given considerable weight in determining the causes for the delay of his trial.

The defendant's assertion of his right to a speedy trial is the third critical factor in the Barker analysis. Appellant argues that his failure to demand a trial in the District of Columbia while he was a prisoner in North Carolina should be given little weight. The Supreme Court has emphasized that although failure to demand a speedy trial is not a waiver of that right, a failure to assert the right will, however, "make it difficult for a defendant to prove that he was denied a speedy trial." Barker, supra 407 U.S. at 532, 92 S.Ct. at 2193. See also United States v. Canty, 152 U.S.App.D.C. 103, 114, 469 F.2d 114, 125 (1972). In the instant case, although there was ultimately a request for a speedy trial, appellant's actions were inconsistent with any genuine interest in an early trial. Appellant used three names in order to avoid being found. When he was transferred to the District of Columbia, he denied being the same person who had been arrested in 1971, thus requiring the government to perform a fingerprint examination to prove that he was, indeed, that same individual. Even after requesting a speedy trial, appellant in March 1976, refused to consent to a modification of the indictment concerning his first name (by which the incorrect name of Howard Cates would be changed to Harold Cates), thus forcing the government to ask the grand jury for a third indictment against him. In light of these actions, appellant's failure to assert his right to a speedy trial until after he had been located and returned to the District of Columbia must be balanced against appellant.

We find that the fourth factor in the Barker analysis, prejudice to the defendant, was not present in this case. The Supreme Court identified three interests of defendant which the speedy trial right was designed to protect:

(i) to prevent oppressive pretrial incarceration; (ii) to minimize anxiety and concern of the accused; and (iii) to limit the possibility that the defense will be impaired. [ Barker v. Wingo, supra 407 U.S. at 532, 92 S.Ct. at 2193.]

In this case, appellant was not incarcerated in this jurisdiction during the period of which he complains, and he has conceded that his defense was not impaired in any concrete manner. If appellant suffered any anxiety and concern because of the delay between arrest and trial, we do not find these factors to be chargeable to the government.

In applying the four relevant factors to the facts in the Barker case, the Supreme Court held that Barker had not been deprived of his due process right to a speedy trial, despite a delay between arrest and trial of over five years. The Court's ultimate conclusion is equally applicable to this case:

More important than the absence of serious prejudice, is the fact that Barker did not want a speedy trial. . . . [T]he record strongly suggests that while he hoped to take advantage of the delay in which he had acquiesced, and thereby obtain a dismissal of the charges, he definitely did not want to be tried. [ Barker v. Wingo, supra at 534-35, 92 S.Ct. at 2194.]

Cates, like Barker, tried to avoid coming to trial, and it was only after he lost "his gamble" that he began to object to the delay. Id. at 535, 92 S.Ct. 2182. We hold that the appellant has not been deprived of a speedy trial.

Affirmed.