R. Austin Freeman 
The Eye of Osiris 

“Thorndyke never forgets a likely case. He is sort of a medico-legal camel. He gulps down the raw facts from the newspapers or elsewhere, and then, in his leisure moments, he calmly regurgitates them and has a quiet chew at them.”
The Eye of Osiris is a detective novel written by R. Austin Freeman. The writer drew on his extensive medical and scientific background for his main character. This medico-legal investigator depends on forensic evidence and logical deduction in solving cases.