What is the name of the detective in Wilkie Collins' 'The Moonstone'?

The detective in Wilkie Collins's 'The Moonstone' is Sergeant Cuff. He is a highly respected police investigator brought in to investigate the theft of the valuable diamond.

Cuff is one of English fiction's earliest professional detectives. He is observant, methodical and confident, but Collins gives him an unusual personal passion: growing roses. During the investigation, he often whistles 'The Last Rose of Summer', making him more distinctive than the purely analytical detectives who followed him.

The character was partly inspired by Inspector Jack Whicher, a real Victorian detective associated with the notorious Road Hill House case. Collins adapted details from contemporary crime reporting, including the country-house setting, suspicious servants and an apparently impossible theft.

Cuff is sometimes mistaken for the novel's eventual problem-solver, Franklin Blake. Blake is an amateur gentleman investigator and narrator, while Sergeant Cuff is the professional police detective called in by Lady Verinder.