State Comptroller Joseph Shapira is investigating Finance Minister Yair Lapid's inclusion of Brig. Gen. (res.) Hillel Koberniski in key Finance Ministry meetings and decisions in recent months, Channel 2 reported late Monday night.Koberniski has already been called Lapid's closest adviser and participated in major ministerial meetings, despite not being a Finance Ministry employee, said the report.Lapid's spokesman said that, "the appointment of Koberniski was approved according to law."The report quoted the spokesman continuing and stating, "he is a member of an advisory committee to the finance minister, and his appointment was approved, by the attorney-general, among others."Shapira's spokesman said, "the matter has been transferred for a preliminary investigation to the head of the relevant division" in the Comptroller's office, the report said.