Birmingham will appear before a English FA disciplinary commission tomorrow to answer two charges arising out of the derby encounter with Aston Villa at St Andrews in September.
City won 3-0 but their victory was marred by fans running onto the pitch to celebrate their goals.
One fan, Michael Harper, was given a four-month prison sentence after coming onto the playing area to confront Villa keeper Peter Enckelman after his blunder gifted Blues their second goal.
Officials from Soho Square will hear City's explanation after they were charged with failure to protect players and officials plus failure to control encroachment onto the pitch.
If a guilty verdict is passed, Blues could face a points deduction although it is more likely that they will be fined.
PA