Donald V. Dumont was convicted by a Texas jury in 1965. The offense: possession of heroin; the punishment: life in the Texas Department of Corrections. The judgment was affirmed on direct appeal, Dumont v. State, Tex.Cr.App. 1965,
Dumont, who has exhausted available state remedies, appeals the district court’s denial of habeas corpus following an evidentiary hearing. On the merits, Dumont levels a due process attack against Texas’ former statutory procedure for selecting grand jury commissioners and grand jurors as that procedure was applied in the selection of the grand jury which indicted him in Harris County on December 18, 1964.
1
Specifically, Dumont contends and sought to prove that the “freeholder” requirement for service on the grand jury commission, together with the “freeholder or householder” requirement for service on the grand jury, operated to deny him an indictment by a fair cross-section of the community. For a fuller explication of the proceedings below, see the opinion of the district court, S.D.Tex.1974,
Dumont was brought to trial in March 1965, represented by employed counsel. His plea was not guilty. Texas law then (Vernon’s Ann.C.C.P. of 1925, art. 358) and now (Vernon’s Ann.C.C.P. of 1965, art. 19.27) provides:
Before the grand jury has been impaneled, any person may challenge the *796 array of jurors or any person presented as a grand juror. In no other way shall objections to the qualifications and legality of the grand jury be heard. Any person confined in jail in the county shall upon his request be brought into court to make such challenge.
The Court of Criminal Appeals has consistently construed this article to mean that a defendant who would challenge the composition of the grand jury, for any reason, must do so at his earliest opportunity.
See, e. g.,
Valadez v. State, Tex.Crim.App.1966,
In this case, Dumont аdmittedly waived both of the Texas procedures for pretrial challenge to the composition of the grand jury. We must decide the consequences of that waiver as they affect the availability of federal habeas corpus relief. The State does not argue that Dumont deliberately bypassed an available state prоcedure.
Cf.
Van Eaton v. Wainwright, 5th Cir. 1975,
Our analysis begins with a rule of federal constitutional law:
It is beyond question that under the Due Process Clause of the Fourteenth Amendment Louisiana may attach reasonable time limitations to the assertion of federal constitutional rights. More particularly, the State may require prompt assertion of the right to challenge discriminatory practices in the make-up of a grand jury. [350 U.S. at 97 ,76 S.Ct. at 162 ,100 L.Ed. at 91 ]. “No procedural principle is more familiar to this Court than that a constitutional right may be forfeited in criminal as well as civil cases' by failure to make timely assertion of the right . . . .” [350 U.S. at 99 ,76 S.Ct. at 163 ,100 L.Ed. at 92 ],
Michel v. Louisiana,
supra.
In this case, Dumont makes no due process attack on
*797
the reasonableness of the Texas rules which require pretrial challenges to the composition of the grand jury.
Cf.
Reece v. Georgia,
Under these circumstances, we are guided by Davis v. United States,
supra,
and this Circuit’s line of cases, cited
supra,
which have extended
Davis
on a state-by-state basis. In
Davis
the Supreme Court held that a prisoner’s failure to raise a grand, jury complaint by pretrial objection to the indictment bars collateral review of the alleged defect, unless for “cause shown” the court grants relief from the waiver. Although
Davis
was a 28 U.S.C. § 2255 case which narrоwly involved only a construction of F.R.Crim.P. 12(b)(2), “[t]his Circuit has already rejected the attempt to limit
Davis
to its precise facts.” Newman v. Henderson,
supra,
Yet the
Davis
“waiver-by-failure-to-object” bar is not without its own exception. We implied earlier that it is not beyond conceivability that a prisoner might somehow show the procedural rule to be unconstitutional as applied by the state in his case.
Cf.
Rivera v. Wainwright,
supra,
Here, Dumont neither alleges nor shows any specific cause for his failure to comply with the Texas law. He does not contend, for example, that his retained counsel was ineffective. Nor does he assert that state officials denied him an opportunity to exercise his right to challenge the grаnd jury under the state rule. Dumont’s sole argument against foreclosure by waiver is that in 1964, at the time of indictment, neither he nor his attorney was aware of any constitutional case law which might arguably have provided a basis for an attack on the “freeholder-householder” qualification. Dumont alleges that it was not until 1972, when he was reading law books in the prison library, that he realized he might have a case based on exclusion of poor people, women, and young people. 4
*798
Noting that the grounds of Dumont’s attack appeared to present a case of first impression in the federal courts, the district court relied on Muniz v. Beto, 5th Cir. 1970,
Desрite whatever appeal the district court’s reasoning might contain in the abstract, we are not writing on a clean slate. Unfortunately, the district court did not then have the benefit of a number of our
post-Davis
decisions. Those decisions have settled at least two crucial points. First, though there can be evidentiary overlap, the
Davis
waiver doctrine — unlike the “considered choice” or “deliberate bypass” doctrine — does not turn on tactical considerations. In situations such as this, in which the
Davis
waiver doctrine otherwise applies, the foreclosure is automatic absent a showing of unconstitutionality in the waiver itself or “cause” amounting to actual prejudice.
5
See
Aaron v. Capps, M.D. Ala.1974 (Appendix to opinion of the Fifth Circuit), aff’d,
supra,
No other cognizable “cause” having been demonstrated, it thus fell in
*799
cumbent upon Dumont to show gross irregularity or manifest unfairness in the grand jury proceedings which resulted in his indictment. The district court specifically found that Dumont had shown no
actual
prejudice in the return of the indictment by a grand jury composed of freeholders and householders.
Our holding does not create a conflict with Muniz v. Beto,
supra,
which the district court found persuasive.
Muniz
involved more than a question of first impression in the federal courts. It involved, instead, a habeas petitioner’s belated assertion of a constitutional claim which the Supreme Court had expressly and definitely recognized in an intervening decision rendered pursuant to the Court’s certiorari jurisdiction.
6
Also,
Muniz
was decided prior to
Davis
and our decisions interpreting
Davis.
Accordingly, this court cast its discussion in terms of whether Muniz could have known, prior to
Hernandez,
that Texas would consider his undisputable challenges to jury composition. Since, until
Hernandez,
Texas had repeatedly refused to recognize the systematic ex-elusion of Mexican-Americans, we held that a procedurally proper objection pri- or to trial in 1942 would have been an exercise in futility. Cоnsequently, Mun-iz’ waiver did not meet the constitutional test of “ ‘an intentional relinquishment or abandonment of a
known
right or privilege.’ ”
Our construction of
Davis
and subsequent decisions of this court necessarily injects additional considerations into the analysis. We hold that the mere unencouraging status of the law at the time of trial is not
of itself
“cause” sufficient to excuse an otherwise lawful and final state рrocedural waiver, and thereby warrant the federal court in entertaining a collateral petition. This holding, however, need not collide with the teaching of
Muniz
that one cannot, for purposes of tactical bypass, knowingly and intelligently waive a constitutional right prior to the time it is declared to exist. As we have already stated, thе
Davis
procedural hurdle, when otherwise properly in the case, must be surmounted independently of traditional “knowing and intelligent” waiver. We need not decide here whether success past the latter might in some case also scale the former, for neither the Supreme Court nor this court nor any court to our knowledge has declared a right in Dumont’s favor upon the particular challenge he asserts.
7
On other occasions a favorable change in the law subsequent to final conviction has been held to justify collateral attack.
See, e. g.,
Davis v. United States,
For the foregoing reasons, the judgment dеnying habeas corpus relief is
Affirmed.
Notes
. The grand jury which indicted Dumont was chosen by a two-step process. Under former V.A.C.C.P. art. 333 (1925) (now art. 19.01, as amended, V.A.C.C.P. of 1965), the district judge appointed not less than three nor.more than five persons to act as jury commissioners. One of the qualifications required that they be “qualified jurors and freeholders in the county.”
Once selected, the grand jury commissioners in turn chose sixteen grand jurors. In order to serve on the grand jury, one had to be “a freeholder within the state, or a householder within the county.” V.A.C.C.P. art. 339 (1925) (now art. 19.08, as amended, V.A.C.C.P. of 1965). See
also
V.A.C.C.P. art. 338 (1925) (now art. 19.06, as amended, V.A.C.C.P. of 1965). A related description of this scheme is contained in Brooks v. Beto, 5th Cir. 1966,
Since Dumont’s indictment, the Texas Legislature has substantially revised the grand jury statutes. In 1965, article 339 was amended and reenacted as article 19.08 to include wives of householders. In 1969, the freeholder-householder qualification was deleted entirely as to grand jurors. The freeholder qualification for grand jury commissioners, article 19.-01, was dropped in 1971. See V.A.C.C.P. of 1965 (1974-75 Supp. at 327, 330). In 1965, article 19.06 was written to enlаrge the grand jury from sixteen to twenty members. The present article 19.06, as amended in 1967, directs the commissioners to select not less than fifteen nor more than twenty citizens of the county to serve as grand jurors. V.A.C.C.P. of 1965 (1974-75 Supp. at 328).
. The Court of Criminal Appeals denied Dumont’s application without written order on December 19, 1972.
. See the examples indicated in Davis v. United States,
supra,
. Dumont’s “realization” sprang from a reading of this court’s opinion on Petition for Rehearing in Rodriguez v. Brown, 5th Cir.
*798
1971,
. [T]he Court’s holding today bars prisoners from raising meritorious claims not raised before trial. A prisoner like Davis could not contend after today’s decision, for example, that federal jury commissioners had simply refused to place the names of Negroes in the jury box used in 1968. That, of course, would have been unconstitutionаl.
Davis v. United States,
supra,
. Hernandez v. Texas,
. The Texas grand jury system has frequently been challenged, usually on ethnic grounds. Upsetting of convictions has occurred on a case-by-case basis; the system has never been held inherently unfair. See the cases collected by the district court,
. The determination, it seems, would involve a careful identification and balancing of the factors comprising the respective parties’ interests. From the petitioner’s standpoint the inescapably predominant factor is the traditional policy of collateral attack as a means to reliеve an
“unjust
incarceration.” Schneck-loth v. Bustamonte,
