OPINION
DALLY, Judge.This is an appeal from an order denying relief in a habeas corpus proceeding. The appellant was convicted in a City of Houston municipal court for the violation of V.T.C.A. Penal Code, Sec. 38.02. He appealed from that conviction to a county criminal court at law. Art. 1200cc, Sec. 7, V.A.C.S. The judgment was affirmed; after a capias pro fine was issued and executed, the appellant’s application for a writ of habeas corpus was granted, but the relief sought was denied in County Criminal Court at Law Number One of Harris County. The appeal from that order is properly before this Court. Art. 44.34, V.A.C.C.P.; Nichlos v. State, 158 Tex.Cr.R. 367, 255 S.W.2d 522 (1952); Ex parte Largent, 144 Tex.Cr.R. 592, 162 S.W.2d 419 (1942).
The appellant asserts that Art. 1200cc, V.A.C.S. is unconstitutional since the procedure therein promulgated for the municipal courts that may be created by authority of that statute deprives a defendant of the constitutional right to equal protection of law. Art. 1200cc, supra, provides for establishment of municipal courts in cities with populations of. over 1,200,000. These courts are courts of record from which appeals are taken on the record to a county criminal court. These appeals are determined by the appellate court solely on the basis of errors assigned in a motion for new trial as presented in a transcript and statement of facts prepared in the municipal court. Art. 1200cc, Sec. 8, V.A.C.S. The appellant contends that this procedure denied him equal protection of law since he did not get a trial de novo on appeal, whereas trials de novo are granted appellants from convictions in municipal courts established under the general law of this State. Arts. 44.17 and 45.10, V.A.C.C.P.
Art. V, Sec. 1 of the Texas Constitution provides that the judicial power of this State shall be vested in one Supreme Court, in one Court of Criminal Appeals, in courts of Civil Appeals, in District Courts, in County Courts, in Commissioners Courts, in courts of the Justice of the Peace, and in such other courts as may be provided by law. It further provides that the Legislature may establish such other courts as it may deem necessary and prescribe the jurisdiction and organization thereof, and may conform the jurisdiction of the district courts and other inferior courts thereto. This provision has been construed a number of times, and it has been held that the authority granted to the Legislature is plenary. E. g. Harris County v. Stewart, 91 Tex. 133, 41 S.W. 650 (1897); Ex parte Abrams, 56 Tex.Cr.R. 465, 120 S.W. 883 (1909); Ex parte Wilbarger, 41 Tex.Cr.R. *485514, 55 S.W. 968 (1900); Ex parte Bennett, 85 Tex.Cr.R. 315, 211 S.W. 934 (1919). This constitutional provision allows the Legislature to provide for a flexible and adaptable judicial system. Harris County v. Stewart, supra.
The Legislature in Art. 1200cc, supra, which provides for municipal courts of record and for appeals on the record instead of trials de novo in certain cities, has allowed courts to be created in a classification that is reasonably related to the purpose of providing a flexible and more efficient court system. The Legislature has recognized that problems and conditions in the municipal courts in large metropolitan areas differ from those in the smaller cities and towns. We hold that Art. 1200cc, supra, does not deny the constitutional right to equal protection of law.
The appellant also argues that since Art. 1200cc, supra, is based on a population classification, it is a violation of Art. Ill, Sec. 56 of the Texas Constitution, which prohibits local or special laws relating to the affairs of cities and other political subdivisions. Notwithstanding the above constitutional provision, the Legislature has broad power to make classifications for legislative purposes and to enact laws for the regulation thereof, even though such legislation may be applicable only to a particular class or, in fact, affect only the inhabitants of a particular locality. Resort to population brackets for the purpose of classifying subjects for legislation is permissible where the spread of population is broad enough to include or segregate a substantial class, and where the population bears some real relation to the subject of legislation and affords a fair basis for the classification. See Miller v. El Paso County, 136 Tex. 370, 150 S.W.2d 1000 (1941); Ex parte Carson, 143 Tex.Civ.R. 498, 159 S.W.2d 126 (1942). As we have previously stated, Art. 1200cc, supra, is an attempt by the Legislature to deal with the problems and conditions facing municipal courts in large metropolitan areas. We hold that the class defined by Art. 1200cc, supra, is substantial, and bears a real relation to the subject of the legislation. The statute is not an unconstitutional local or special law.
Appellant also urges that he has been denied his constitutional right to equal protection of the law because the Houston Municipal Court is a court of record, Art. 1200cc, Sec. 1, V.A.C.S., whereas municipal courts established under the general law are not. Art. 1194, V.A.C.S., et seq. He argues that because final convictions in a court of record may be admitted in evidence at the punishment stage of a criminal trial, Art. 37.07, Sec. 3(a), V.A.C.C.P., he has been assessed a harsher penalty than may be assessed those convicted in other municipal courts. This contention is premature. Appellant’s municipal court conviction has not been admitted in evidence in any subsequent criminal trial. A constitutional attack may not be based on an apprehension of future injury. Bush v. Texas, 372 U.S. 586, 83 S.Ct. 922, 9 L.Ed.2d 958 (1963); Ex parte Usener, 391 S.W.2d 735 (Tex.Cr.App.1965); Austin Fire and Police Departments v. Austin, 149 Tex. 101, 228 S.W.2d 845 (1950).
Appellant contends that he has been denied the effective assistance of counsel because his request for oral argument on appeal to the Harris County Criminal Court at Law was denied. The denial of appellant’s request for oral argument in no way impaired his right to the benefit of counsel within the procedure established by the statute, which does not explicitly provide for oral argument. Art. 1200cc, Sec. 8, V.A.C.S. The record shows that appellant has been represented by counsel at all stages of this case. Although not required to, a county court judge may hear oral argument on an appeal from the municipal court.
Because his fine did not exceed $100.00, appellant was unable to directly appeal to this Court from the affirmance of the Municipal Court judgment in the Harris County Criminal Court at Law. Art. 1200cc, Sec. 21, V.A.C.S. Appellant contends that he has thereby been denied his right to appeal. The right to appeal in a *486criminal case is a statutory right, Savage v. State, 155 Tex.Cr.R. 576, 237 S.W.2d 315 (1950), and the jurisdiction of this Court is subject to such exceptions and limitations as may be prescribed by law. Texas Constitution, Art. V, Sec. 5. Ex parte Bennett, supra. Furthermore, the limitation on appeals to this Court contained in Art. 1200cc, Sec. 21, V.A.C.S., is consistent with the general limitation contained in Art. 4.03, V.A.C. C.P. See Leggio v. State, 489 S.W.2d 622 (Tex.Cr.App.1973); Bass v. State, 399 S.W.2d 558 (Tex.Cr.App.1966). None of the appellant’s rights to appeal has been denied. The judgment is affirmed.
Before the Court en banc.