216.
At trial, Mr Rivlin QC, who appeared for the appellant at trial, sought to counteract this evidence in two ways.
First in cross-examination of the scientist, he drew his attention to traces of other elements in the test results from the swabs, iron and copper, and queried whether these were significant.
The scientist said that they were no more than might have been obtained from the atmosphere.
He did not think the copper could have come from the bullets unless they had been scratched.