concurring.
I concur in the result reached by the Majority that the Commonwealth is prohibited from presenting expert opinion testimony as to the alleged forgery of a lottery ticket which the Commonwealth lost prior to trial. However, I disagree with the Majority that the Commonwealth should be permitted an absolute right of appeal from an adverse ruling on a motion in limine upon the bare allegation of the District Attorney that the prosecution is substantially handicapped by that ruling. I do so for the same reasons I expressed in my concurring opinion in Commonwealth v. Cohen, 529 Pa. 552, 605 A.2d 1212 (1992).