Taxing Citizens - The Legislative arm of government is responsible for making tax laws..
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Building and Maintaining Roads - This Executive arm of government is responsible for building and maintaining roads. Though some of these projects are funded by the Federal government, the responsibility of building is on the State governments. but can be delegated to counties, cities and towns.
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Pushing citizens for crimes - The judiciary arm of government is responsible for interpreting the law and giving verdicts on legal consequences of crimes.
This is due to the naming of their two dimensional work which is usually on a canvas ABSTRACT names or use of abstract terms to depict their work which makes it unrealistic with the three dimensional world or untreatable with life.