"It appears that because those codes exist that this wasn't picked up (and) that those codes were manipulated to allow this to occur," Hiber testified.
"Someone knew what he or she was doing," observed Sen. Mark Leno, D-San Francisco, chairman of the Senate Budget and Fiscal Review Committee.
"Correct, correct," Hiber said. "And there appears to be collusion here as well. So we're in the process of evaluating those codes as they were used and changing the procedures to eliminate this practice from occurring at all in the future."
Three parks department executives were disciplined this month because they "manipulated the system" or gave "recklessly flawed advice," according to formal actions imposed by the department.