Police will detain Senior Resident Magistrate Maisy Chesang for nine days, to allow more time to for investigations.
Maisy was arraigned in court on Monday morning after she was arrested following her alleged role in the murder of her husband, lawyer Robert Chesang.
The Nyeri Magistrate was arraigned at the Mavoko law courts alongside three other suspects as probe into the death of the city lawyer continues.
Sergeant Richard Lorunyei Moru of Riruta Police Station and Mr Peter Mbithi who is attached to the Mutuine post were also arraigned in court in connection to the murder.
Retired officer Lawrence Lempesi was arrested in Baragoi, Samburu County on Saturday over links to the murder.
Police alleged that he was the link between the wife and Chesang’s killers.
The lawyer was shot and killed by gunmen who raided his house at Moke Gardens in broad daylight on February 17.