from that which such facts ordinarily would require under the guidelines.
Because of the importance of the stipulations and the potential complexity of the factors that can affect the determination of sentences, stipulations ordinarily should be in writing. However, exceptions to this practice may be allowed by local rule. The Commission intends to pay particular attention to this aspect of the plea agreement procedure as experience under the guidelines develops. See Commentary to §6A1.2 (Disclosure of Presentence Report; Issues in Dispute).
Section 6B1.4(d) makes clear that the court is not obliged to accept the stipulation of the parties. Even though stipulations are expected to be accurate and complete, the court cannot rely exclusively upon stipulations in ascertaining the factors relevant to the determination of sentence. Rather, in determining the factual basis for the sentence, the court will consider the stipulation, together with the results of the presentence investigation, and any other relevant information.