In State v. Ray, 166 Wis. 2d 855, 873, 481 N.W.2d 288 (Ct. App. 1992), the defendant was convicted of conspiracy to deliver cocaine. The trial court then doubled the maximum sentence pursuant to Wis. Stat. 161.48(2) (1987-88). That statute specifies certain drug crimes for which the fines and terms of imprisonment are doubled if the person has been previously convicted under the chapter. Additionally, the trial court applied the general repeater statute, see Wis. Stat. 939.62 (1987-88). The Court held that "both enhancement statutes may not be applied together for one conviction." Ray, 166 Wis. 2d at 873.