The 1st District Appellate Court has reversed the dismissal of a personal-injury suit against Brookfield Zoo after ruling the circuit court improperly recognized the zoo as a local government entity. Since 1934, the zoo has been operated on land owned by the Cook County Forest Preserve District. It’s controlled and maintained by the private, nonprofit Chicago Zoological Society under an agreement signed in 1986. Kristine O’Toole filed a negligence complaint in July 2012 after she tripped on a zoo walkway …