Answered by The Community. Making the world better, one answer at a time. 1st way of government policy to affect demand/supply is through price ceilings and price floors. By price ceiling it means that goods have to be sold below this price and price floors means that goods have to be sold above this price set.As supply decreases, price increases, because there is less of the commodity available on the market, and consumers must compete more aggressively with each other to purchase the same commodity. Price can also increase when demand increases, also creating increased competition for the commodity.
For example, mechanical surveillance would be used over human in a case where someone is stealing from a construction site. Private investigators can put up cameras and go back and harvest the recordings. Human surveillance is when the investigative team is the main source of information.
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