I believe I recall reading here a few years back that one thing that Illinois public servants do often is retire at age 55 or even 50 from their job and then go to a neighbouring state like Iowa or Indiana and take another public servant job there for a few years and have their Illinois pension as well as the regular salary from the new job in the other state and have pensions from both jobs when they retire from the other job a few years later.
There was an article on FR last week about the new Chief of Police in Los Angeles. He’s a former Deputy Chief who “retired,” took a one time windfall payment of $1.7 million (”not knowing he was being considered as the new chief”), then became the new chief. So now he gets his pension AND an even higher salary as chief.