Appellant was indicted, tried and convicted in a one count indictment charging assault with a deadly weapon upon a member of the Metropolitan Police Department in violation of § 22-505 (b) of the D.C.Code (Supp.VII, 1959).

Appellant urges, first, that the failure of his counsel in the trial court to pursue his attempt to impeach a Government witness constituted ineffective assistance of counsel. Secondly, appellant claims that the trial court erroneously permitted the introduction of evidence and gave an erroneous instruction on the doctrine of flight.

We have examined both of these contentions and, under the circumstances of this case, find no error.

Affirmed.