George Hamilton, Assistant Chief Constable of Strathclyde Police, said the case against Weir had been built from "a long running and complex investigation".
As of last week, Clyde Union Pumps (formerly Weir Pumps) has been added to the long list, and Dundee's diagnostics firm Axis-Shield is resisting a takeover bid from the US - at least at the current bid price.
This helps to explain the long-lasting appeal of Conor McPherson's "The Weir, " whose successful 1999 Broadway run introduced New York playgoers to the most admired Irish playwright of his generation.