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Duties of probation officers. 
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259.—While a child remains under the supervision of a probation and welfare officer pursuant to this Act, whether in accordance with an order of a court or otherwise, the officer shall, subject to the directions of the court, where appropriate, and in addition to the terms of and any conditions attaching to any particular placement— 
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(a) visit, assist, advise and befriend the child and, where feasible, the child's parents or guardian or other adult in whose residence the child may be residing, 
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