Detective Dan Just Completed a Lengthy Investigation into a Complex

Detective Dan just completed a lengthy investigation into a complex embezzlement case involving gourmet food trucks at a local outdoor market. During his surveillance he noted that sales were frequently made without using the cash register and that it was common for the person taking orders from customers to commingle money from sales with personal funds. Prosecutor Paula filed felony embezzlement charges against Eric. The preliminary hearing is scheduled for tomorrow. What does Detective Dan need to do to prepare for the preliminary hearing?

A) Study case law so he can give valid legal justifications for conducting surveillance without a search warrant
B) Review his notes and be ready to testify
C) Make copies of all investigative reports so Paula can give them to the defense attorney
D) Nothing - the prosecutor handles the preliminary hearing and does not call witnesses