A SANTA CRUZ POLICE OFFICER WAS INJURED DURING THE ARREST OF A MAN IN DOWNTOWN SANTA CRUZ THIS WEEK.   AROUND 10 A-M TUESDAY,    22-YEAR-OLD NICHOLAS POLTENO FLED A BUSINESS ON LOCUST STREET AFTER ATTACKING ONE OF ITS EMPLOYEES.     POLICE FOUND THE TRANSIENT ON CEDAR STREET AND CAUGHT HIM NEAR CHURCH STREET.    HE WAS UNCOOPERATIVE AND SHOT WITH A STUN GUN.    WHILE BEING TAKEN TO THE PATROL CAR, POLTENO KICKED A FEMALE OFFICER ON THE SIDE OF HER KNEE.     THE OFFICER WAS TREATED AT A HOSPITAL AND REMAINS ON LEAVE.     POLTENO REMAINS IN JAIL IN LIEU OF $20,000 BAIL.