Paul Thomas 
Death on Demand [EPUB ebook] 

Maori cop Tito Ihaka, unkempt, overweight, intemperate, unruly, unorthodox and profane , is a stubborn investigator with an uncanny instinct for the truth. He hunts a shadowy hit-man who could have several notches on his belt, including that of an undercover cop. To complicate matters Ihaka becomes involved with a female suspect who could hold the key to everything.