Police have ended an investigation into how Laura Plummer obtained the 300 Tramadol tablets.
One 12-year-old boy had to have part of his bowel removed after swallowing the magnetic balls.
A study found the proposed scheme was unaffordable in the current financial climate, the council said.
Where does your council tax money go and can you fight any increases?
Dr Michael Mosley explores the link between stress and over-eating
Yorkshire sign 6ft 8in Australia fast bowler Billy Stanlake for this season's T20 Blast.
Preview followed by live coverage of Friday's Championship game between Hull City and Sheffield United.
About these results
Why does 25°C air feel warm, but 25°C water feels cold?
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