The Caves of Steel

Detective Elijah Baley investigates the murder of an offworlder in Spacetown. In the opinion of the Spacers, the murder is tied up with recent attempts to sabotage the Spacer - sponsored project of converting Earth to an integrated human/robot society on the model of the Outer Worlds.

To search for a killer in the City's vast caves of steel, Elijah is assigned a Spacer partner named R.Daneel. That's Robot Daneel. And notwithstanding the celebrated Three Laws of Robotics, which should make such a murder impossible, R.Daneel is soon Elijah's prime suspect ...

This is the first of Isaac Asimov's robot novels.

THE THREE LAWS OF ROBOTICS

. A robot may not injure a human being, or through inaction, allow a human being to come to harm
. A robot must obey the orders given it by human beings except where such orders would conflict with the First Law
. A robot must protect its own existence as long as such protection does not conflict with the First or Second Law