State v. Tuescher
In State v. Tuescher, 226 Wis. 2d 465, 468, 595 N.W.2d 443 (Ct. App. 1999), the Court concluded that "a defendant earns credit toward a future sentence while serving another sentence only when both sentences are imposed for the same specific acts."
In so concluding, the Court explained that Wisconsin case law supported the "position that under 973.155, one sentence does not arise from the same course of conduct as another sentence unless the two sentences are based on the same specific acts." 226 Wis. 2d at 475.