AP SI and Constable candidates must distinguish police functions from local-government and revenue functions. A police station investigates cognisable offences under criminal law; a municipality maintains civic services; a revenue officer exercises powers assigned under land and executive-magistracy laws. These bodies may coordinate during a festival, flood or road obstruction, but coordination does not merge their powers. A Sarpanch cannot order a criminal arrest; a police officer does not create a municipal tax by patrol.
An RDO may serve as a Sub-Divisional Magistrate in the district administration. That title should not be confused with a judicial magistrate's court. When a public gathering causes a sanitation or safety issue, police manage law-and-order duties while local bodies and departments handle permits, waste, lighting and infrastructure according to law. A strong exam answer names the lead authority for the specific power asked and mentions coordination only if relevant.
Worked example: A local dispute can involve police, a magistrate, a municipal officer and an elected representative. Each has a different legal basis: prevention or investigation of offences, executive powers under law, local-service administration or political representation. Start with the immediate risk and the statutory question. 'All officials in the district' is not a usable jurisdiction answer.
Active recall: Assign investigation, village sanitation, municipal tax and revenue appeal to their normal legal chains. Why is an executive magistrate not automatically a judicial magistrate?