70 ILCS 605/4-40
No commissioner shall be personally responsible or liable for any injury, death or damage to property which may be caused, in whole or in part, by the negligence of such commissioner in the performance or non-performance of his duties as such commissioner, unless such injury, death or damage is caused, in whole or in part, by the wilful and wanton misconduct of the commissioner.
In case any such injury, death or damage is caused, in whole or in part, by the negligence of any commissioner in the performance or non-performance of his duties as commissioner, the drainage district shall be liable for the same, and the district shall indemnify and protect the commissioner against any costs or expenses he may incur by reason of any action brought against him as a result of any such injury, death or damage to property, except where the injury, death or damage to property results from the wilful and wanton misconduct of the commissioner.
70 ILCS 605/4-40