Who is this author and what is the title of the book ??? ?

Question: Who is this author and what is the title of the book !?!?!? !?

i know for a fact that this author comes from italy but i cant remember his or hers name i know that whoever it is he or she wrote a series of books about a private investigator or a policeman
there were like 4 books

does any one know what can it be !?!? i forgot his hers nameWww@QuestionHome@Com

Best Answer - Chosen by Asker:

is the private investigator a female or male!?
if female it might be
j!.d robb(female author)Www@QuestionHome@Com

Sherlock Holmes by Arthur Conan Doyle
:DWww@QuestionHome@Com