Of the crimes that are recorded by the police only about are cleared by arrest

Of the crimes that are recorded by the police only about sixty percent (60%) are cleared by arrest, these rates can go significantly lower if they are committed against minorities, resulting in a lack of belief in the system from them. This low clearance rate might suggest to would-be criminals that they can get away with it, and that communities can't rely on the police.

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the branch of biology that deals with the normal functions of living organisms and their parts.

the way in which a living organism or bodily part functions.