The military police is different from the army in the sense that the military has different roles while the military police has different roles. This happens from country to country. The military police can police both the military people and the civilians.
The military police in the United States for instance is also called provosts keep a check on the corruption activities and other criminal activities among the army personnel. Military Police differs from army to army and has different roles in different countries. Another job of the military police is to conduct surveillance activities.
Military Police differs from army to army and has different roles in different countries. They can either police military personnel or the civilian population or both(French MP). Brazilian MP usually polices the civilian population but also acts as an auxiliary army during wartime.
MP in countries like the U.S., also called Provosts check for corruption and criminal activities by the personnel of the army. Their job is to ensure that the army stays disciplined and does not engage in activities that threaten the integrity of the army or the country. Another function of the MP is reconnaissance and surveillance. They are responsible for site response and security of army installations. They also act as army support during a war and are responsible for gathering police intelligence.