Regular sessions of the grand jury shall be held during the one (1) week periods beginning respectively on the first day of each term as designated in rule 150, and also on each of the alternate Fridays occurring thereafter during the balance of each term. If such Friday shall be a holiday, the daily sessions shall be on the next preceding day which is not a holiday. Additional sessions may be designated by the Court as the exigencies of the situation may require.
Buck. Cnty. Pa. 200*(C)