Where probable cause existed, a police officer’s spiteful motive was not sufficient to invalidate a search warrant. The 7th U.S. Circuit Court of Appeals affirmed a decision by U.S. District Judge Samuel Der-Yeghiayan. Jennifer Scherr’s daughter, Liza, was diagnosed with a rare brain tumor called diffuse intrinsic pontine glioma in 2011 when she was 7. The condition is almost always fatal, usually within months of diagnosis. In 2012, Jennifer learned that the oil from marijuana plants might, if fed to …