Concerned about poverty & knife crime? At the last General Election, which of the 3 major U.K. political parties pledged most to a) help the poor b) increase police funding? The Liberal Democrats (fully-costed tax & spend, independently verified). Surprised? Vote @LibDems in May.
The job of a Police Commissioner is to negotiate with politicians to get the resources, the laws & the political support that they need to get the job done. They have no choice but to be politicians.