10/26/2012 09:30 am ET

Britney Spears' Former Nanny Says She Never Saw Crystal Meth In Singer's Home, Says Sam Lutfi Is Lying

Britney Spears' former nanny is calling BS on Sam Lutfi ... telling TMZ he's straight up LYING about Britney using meth ... and says Sam may have even planted the drugs as a manipulation tactic.

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