On 1 June 1867 Wardley was promoted from the position of assistant medical officer at Tarban Creek Asylum to medical superintendent at Parramatta Asylum in New South Wales. He ended the system of restraint for mental patients and attacked it in Some Phases of Insanity and its Treatment : popularly considered, a published address he gave to the Philosophical and Literary Society of Parramatta in 1871. Wardley also wrote, as 'Fiat Justitia.', The Abolition of Capital Punishment Considered (1869).
