In 1892 a masked figure in a bizarre uniform began a 15 month crime spree, robbing people at gunpoint in and around New Plymouth. When he was finally arrested and unmasked, residents were dumbfounded to discovered the perpetrator was mild-mannered Robert Wallath - the teenage son of a local farmer and carpenter.

Wallath, it turned out, had a deep fascination for highway criminals and at trial his lawyers claimed his mind had been "polluted" by trashy novels about Dick Turpin and Ned Kelly.

But later in life, Wallath claimed his crimes had divine inspiration. So what really drove this Taranaki teenager to commit such a brazen string of robberies and thefts?

Go to this episode on rnz.co.nz for more details