But unlike Naperville's, the overwhelming majority of agencies are struggling as more cops, hired during departmental expansions in the 1980s and '90s, reach retirement age.
And they have only just started: only a third of cuts to benefits and a fifth of those to departmental spending will be in place by the end of the financial year.
And if we tried to use interviews instead, I saw a book in the departmental library that will be helpful: it's called 'Interviews that work', by Wilson, published in Oxford in nineteen eighty-eight.