{dissenting). There were only two witnesses to the alleged crime: the accuser Wade and the accused McCall. The jury verdict necessarily depended on the word of one versus the other. Credibility of each person as a witness was crucial: the defendant said "self-defense," the accuser changed his initial story of "no recollection" to one in which he accused the defendant of attacking him. Yet the circuit court did not allow the accused to cross-examine his accuser with respect to an essential aspect of Wade's credibility: some weeks prior to trial, the district attorney dropped three pending unrelated criminal charges against the accuser Wade. Wisconsin Stat. § 904.03 provides in part that this cross-examination may be excluded if its probative value is "substantially outweighed by the danger of unfair prejudice, confusion of the issues, or misleading of the jury, or by considerations of undue delay, waste of time, *48or needless presentation of cumulative evidence" (emphasis supplied). Not only is this evidence not "substantially" outweighed by the dangers, but in fact none of these factors are present. Accordingly, I respectfully dissent.
My difference with the majority is easily framed. Defendant McCall maintains that on February 22, 1992, he was in his apartment with a woman named Kathleen Wade when her husband, Robert Wade, came to the apartment. McCall testified that Wade pounded on his door, forced his way in when McCall opened the door, and came at him in a menacing way. McCall claims he shot Wade in self-defense.
Wade's story was different. Wade, in fact, had two stories. When first questioned by the police after the shooting, Wade stated that all he remembered was knocking on McCall's door, and then waking up in the hospital. At trial, however, Wade stated that he remembered being allowed into McCall's apartment, and then being shot by McCall for no reason.
At the time of the shooting, Wade had three criminal charges pending against him, all unrelated to this incident. Before McCall's trial, at which Wade was to testify for the State, the prosecutor dropped the charges against Wade. McCall claims that the circuit court erred when it barred him from cross-examining Wade about the dropping of the three pending charges against Wade at the time of McCall's trial. According to McCall, questioning Wade about the dropping of the charges goes directly to Wade's credibility. If, from Wade's testimony, the jury is persuaded that Wade changed his story because he was expecting some sort of leniency in return for his testimony in favor of the State, Wade's credibility would be irreparably damaged. The circuit court, however, found that questions *49relating to the dropping of the charges would unnecessarily waste time and confuse the jury, contrary to Wis. Stat. § 904.03, and the majority agreed. I disagree.
The majority concedes that since Wade was the sole witness for the prosecution, "the accuracy and truthfulness of Wade's testimony were key elements in the State's case." Majority op. at 36. The majority also points out that the inquiry into the dropping of the charges was clearly directed at Wade's credibility as a witness. Moreover, the majority admits that "a defendant's opportunity to explore the subjective motives for the witness's testimony is a necessary ingredient of a meaningful cross-examination." Id. at 37 (citing State v. Lenarchick, 74 Wis. 2d 425, 448, 247 N.W. 2d 80 (1976)). And yet, having made these concessions, the majority still finds that an inquiry into the dropping of the charges against Wade was properly barred by the circuit court, saying that "(t)he bias evidence which McCall wished to introduce would have unnecessarily directed the jury's attention away from the case under consideration, and would have been unduly prejudicial." Id. at 42.
It is inconsistent at best for the majority to say in one part of its opinion that "the accuracy and truthfulness of Wade's testimony were key elements in the State's case," and say in another part of the opinion that this evidence would "unnecessarily direct the jury's attention away from the case . . . ." How can the truthfulness of Wade's testimony be key elements at trial yet cross examination of McCall about the dropping of the three charges unnecessarily direct the jury's attention away from the case? How could this have been, in the words of the majority, "unduly prejudicial" when credibility was the only issue?
*50In State v. Lindh, 161 Wis. 2d 324, 468 N.W.2d 168 (1991), this court concluded that evidence relating to the potential bias of a witness may be excluded if its slight probative value fails to overcome its strong likelihood of confusing the issues and undue delay. The majority cites Lindh to support its conclusion that allowing McCall to cross-examine Wade about any possible agreement he had with the State would unnecessarily confuse the issues and waste valuable trial time. However, the majority fails to tell us how such cross-examination would lead to those undesirable results.
Furthermore, Lindh actually supports McCall's claim. In Lindh we said that in cases where there exists a "prototypical form of bias," i.e., "a situation in which a witness might have or realistically perceive an interest in testifying so as to favor the prosecution," Lindh, 161 Wis. 2d at 354, "the possibility of bias, motive and interest of the witness is particularly distinct and immediate." Id. at 356.
Where the witness knows that his testimony is of value to the prosecution, and the prosecuting attorneys are the same ones who charged the witness with other crimes, there is a reasonable inference that the witness considers himself to be in a position where his testimony could affect the charges pending against him. In such a situation, a jury might reasonably find that the witness had a motive for testifying favorably for the prosecution. Id. at 356-57.
While the witness in Lindh did not exhibit a "prototypical form of bias," the witness in this case, Wade, does. The three charges (battery, resisting an officer, and operating a motor vehicle without the owner's consent) pending against Wade were dropped by the prosecutor, the same one prosecuting McCall, immedi*51ately before trial. While the prosecutor claims that the charges were dropped solely because Wade was in a permanent state of paralysis, nothing in the record indicates whether or not Wade himself perceived there to be some sort of deal between himself and the prosecutor.
The majority and the circuit court place emphasis on the benign motives of the prosecutor in dropping the charges. The prosecutor's motives may have been benign, but his motives are irrelevant. What is relevant here is how Wade perceived the situation, not how the prosecutor did.
The jury should have been permitted to see Wade respond to an inquiry into his motives for testifying. If Wade believed that the prosecutor would drop the charges against him in exchange for his testimony, or if Wade believed that the charges could be resurrected if he failed to testify as he did, his credibility could certainly have fallen in the eyes of the jury.
The facts are critical to understanding the basis of my dissent. According to the record, Wade somehow remembered an important fact about the shooting that he could not remember immediately after the shooting. Testimony by police officers who questioned Wade in the hospital suggests that Wade could not remember much at all of what happened the night of the shooting. And yet, when testifying in court, Wade stated that he remembered McCall pushing him up against a wall and putting "something" against his shoulder. This is an extremely important fact because it goes to whether or not McCall was acting in self-defense.
McCall maintains that Wade came after him and that, while Wade was attempting to get the gun away from him, McCall shot Wade in the shoulder. McCall's story is just as plausible, if not more so, than Wade's *52story. According to Elvis Winters' testimony, Wade had a habit of drinking heavily and, on the night of the shooting, was drinking heavily and picking fights with people in his building. In addition, Wade's wife testified that Wade often got drunk, and that he had a bad temper.
As for the testimony of Wade himself, it is clear from the record that Wade did not have his story straight. At the trial, Wade remembered some things, but not others, and occasionally contradicted himself. When it comes to believing one witness over the other, Wade's credibility is certainly subject to question. And yet the circuit court, and the majority, seem to feel that the change in Wade's story was insignificant. As I see it, it was most significant.
There are three possible explanations for Wade's sudden recalled memory. First, he may just have remembered. This explanation, however, while possible, hardly seems plausible in light of the testimony given by a number of people regarding Wade's condition on the night of the incident. According to testimony given by Wade's wife, the building security guard, and by Wade himself, Wade had been drinking heavily and smoking crack cocaine that night and was, in the words of a witness, "wasted." It is difficult to imagine that someone in that condition could remember events in such detail. Moreover, it is unlikely that Wade's memory would be better several months later, i.e., at the trial, than it was even one day later, i.e., at the hospital.
The second possible explanation for Wade's recalled memory is that he simply wanted to get back at McCall for something. However, nothing in the record indicates that Wade had any animosity towards *53McCall. In fact, the record reflects that the two men had a very amicable relationship.
The third possible reason why Wade suddenly "remembered" is that he perceived he had an interest in testifying favorably for the State in order to receive favorable treatment from the prosecutor for his own crimes. Although other alternatives might exist, this is certainly a highly plausible explanation.
Nothing in the record indicates whether Wade's sudden recalled memory came before or after the prosecutor dropped the three pending charges against him, and we will never know. Since the defense was prohibited from asking Wade what he perceived about the dropping of the charges, the jury was unable to determine whether or not Wade's story was fabricated or at least enhanced in order to receive more lenient treatment for his own crimes from the prosecutor.
The majority quotes the circuit court's reasoning for not allowing cross-examination on this issue, and agrees with the circuit court that this discrepancy as to what Wade remembered is a "very small difference." Majority op. at 39. Small? This discrepancy in Wade's story has an enormous effect on the credibility of McCall's claim of self-defense. If Wade could not remember anything, there would be reason to believe McCall's story. If Wade does remember the attack being unprovoked, McCall's story loses credibility.
How could the issue of whether or not McCall acted in self-defense be characterized as "small?" It is the very issue upon which this case rests!
The majority goes on to state that the "lack of any demonstrable impact of the dismissal of charges on Wade's testimony was but one of the various factors considered by the circuit court in exercising its discretion to limit the scope of cross-examination." Id. at 40. *54How can the majority say this with such certainty when we have no idea how Wade would have responded under cross-examination? Moreover, the circuit court had no idea how Wade would have responded.
The majority also states that McCall "was unable to offer any proof to substantiate his claim of a clandestine agreement between Wade and the prosecutor." Majority op. at 40. How could he offer any proof when he was denied the opportunity to cross-examine Wade on this issue? Furthermore, whether or not there was an actual agreement between Wade and the prosecutor is irrelevant. What matters is whether or not Wade believed that testifying favorably for the State would help his own situation, and thus compel him to fabricate or enhance his story.
The majority points out that McCall solicited a great deal of information about Wade regarding his character for truthfulness. While this is correct, the problem with the majority's reasoning is that none of the information about Wade's character goes to his motive to fabricate. The essential issue in this case is whether or not McCall acted in self-defense. Wade first stated that he remembered nothing about being shot. He then testified in court, after the charges against him had been dropped, that Wade attacked him unprovoked. The inquiry into what Wade believed about the dropping of the charges is critical to determining whether or not Wade's story about an unprovoked attack is credible.
The circuit court judge erred as a matter of law by not allowing McCall to cross-examine Wade about the dropping of the charges against him. The majority and the circuit court believe that such an inquiry into the dropping of the charges against Wade would confuse the issues and would be both unnecessarily cumulative *55and a waste of time, contrary to Wis. Stat. § 904.03. The majority and the circuit court are in error.
First, in terms of confusing the issues, I fail to discern how this inquiry would have confused anything, and the majority does not tell us how it would. Wade's response to such an inquiry would merely have affected his credibility one way or the other.
Second, the testimony would not have been unnecessarily cumulative. The majority claims that since we already know who shot Wade, and how he was shot, any further inquiry into the area would be repetitive. But the issue was not "who" or "how," the issue is "why." Allowing the jury to hear whether or not Wade understood there to be an agreement with the prosecutor would go to why Wade was shot, not how or by whom he was shot.
Lastly, this inquiry would not have caused undue delay. It could hardly have taken more than a few short minutes. For something as critical as Wade's motives for testifying, that would have been a few minutes well spent.
Therefore, I would affirm the court of appeals, but on different grounds. I conclude the circuit court misused its discretion under Wis. Stat. § 904.03 by not allowing any inquiry into Wade's motives for testifying as he did. Accordingly, I would not reach the issue of McCall's 6th Amendment Right of Confrontation.