¶1(concurring in part, dissenting in part).
¶2I agree that it is the date of the conviction that governs when applying the four (now five) year time limitation provided by SDCL 32-23-4.1. I also agree that there is no merit to appellant’s equal protection claim.
¶3I do not agree, however, with the holding that the September 2, 1981, conviction could be used to enhance the penalty for a conviction resulting from an offense that occurred prior to the September 2, 1981, conviction. SDCL 32-23-4.1 speaks of convictions occurring prior to the date of the violation being charged, not to the date of the plea or conviction on the currently charged violation.
¶4I am authorized to state that HENDERSON, Justice, joins in this concurrence in part, dissent in part.