First, while experts were not able to testify as to causation on a standard of scientific precision, there was some evidence that the negligent operation had led to the injury. (slaw.ca)
Legal causation however need not be determined by scientific precision and is essentially a practical question of fact which can best be answered by ordinary common sense rather than abstract theory. (holnesslawgroup.com)
Evidence that pins down a suspect's presence with scientific precision is a crime fighter's dream. (discovermagazine.com)