OPINION
A jury found appellant guilty of possession with intent to deliver cocaine weighing four grams or more but less than 200 grаms. 1 After appellant pleaded “true” to two enhancement paragraphs, the trial judge assеssed punishment of 30 years in prison. We affirm.
*783 In his first point of error, appellant asserts the trial judge erred by overruling his pretrial motion to suppress the cocaine. Appellant did not obtain a ruling on the motiоn before trial.
At trial, three officers testified at length, without objection, about appellant’s key box and the cocaine it contained. Appellant then objected as follows:
COUNSEL: I have — uh—an objection to the admission of this black box because we only have the testimony of one officer saying that this black box belonged to my client; and he also testified that he didn’t get it from my client. And — uh—I’d like to object tо the admission of the black box and the contents in the plastic bag that the black box is in.
Appellant’s objection was untimely. To be timely, an objection must be raised at the earliest opportunity or as sоon as the ground of objection becomes apparent.
Martinez v. State,
Point of error one is overruled.
In his second point of error, appellant asserts his lawyer was ineffective during the punishment stаge of his trial because he failed to object to a prior conviction used to enhancе his punishment. Appellant argues the prior conviction is invalid because the judgment shows that appеllant neither had nor waived counsel in that case. In that judgment, the space labelled “Attorney for Dеfendant” is blank, and the space labelled “Waived Counsel” is blank. Below these blanks, the judgment recites in pertinent part that “the Defendant named above appeared in person and either by cоunsel as named above or knowingly, intelligently and voluntarily waived the right to representation by counsel as indicated above_” (Emphasis added.)
Counsel must investigate prior convictions alleged for enhanсement.
Ex parte Langley,
Here, the record does not affirmatively demonstrate counsel’s ineffectiveness. We know little about counsel’s рerformance at the punishment stage. We do not know whether counsel investigated the prior conviction, whether he knew the law applicable to it, or why he did not object, because the issue wаs not aired at a motion for new trial hearing. Given a silent record, we must presume that counsel had а trial strategy explaining the lack of objection, if one is conceivable. One is. Counsel may have checked the file of the prior conviction and found, as one would expect in a criminal case tried in Harris County in 1991, that appellant had or waived counsel, contrary to the unchecked blanks on the preprinted judgment. Moreover, counsel may have concluded that the file in that case was also readily available in the Harris County District Clerk’s office for the prosecutor to use to overcome the objection. Finally, counsel could have concluded that putting the prosecutor through this effort might inspire the prosecutor to seek harsher punishment against appellant.
*784
Appellant’s authorities are distinguishable. In
Langley,
cоunsel did not object to a non-final conviction used to enhance the applicant’s punishment.
Langley,
Here, because no hearing was held at which counsel could have explained his actions, as counsel in Langley and Felton did, the record is insufficient to prove that counsel failed to adequately investigate the prior conviction.
The second point of error is overruled.
The judgment is affirmed.
Notes
. See TexHealth & Safety Code Ann. § 481.115(d) (Vernon Supp.1996).
