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Ok good. Here you have related it to the media and you have references. But your analysis is not enough. Why did you choose these images? Why do you think they are good examples of the function of instrumental surveillance?

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http://www.vogue.co.uk/topic/fashion-trends

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http://www.cinemablend.com/news.php

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Instrumental surveillance occurs when the information useful in everyday life is transmitted, such as, stock market prices, new products, recipes and so on. A TV serial may perform a function of instrumental surveillance by portraying new hair or dress styles or women in changing roles.

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Surveillance denotes observation. Here observation means to watch the society closely. The function of mass media is to observe the society closely and continuously and warn about threatening actions to the mass audience that are likely to happen in future in order to decrease the possible loss.