The Police File
The Police File on the Roebourne bank murders of Anketell and Burrup gives an insight into the “behind the scenes” investigations that were not made public. There are cryptic telegrams, red herring statements, allegations that the Police Commissioner stymied an otherwise promising investigation, a suspect of high social standing but no proof as to his guilt, and plenty more: all make for fascinating reading. 
I am working through the above mentioned documents, transcribing them. As each document is transcribed it is posted here. Click on the links below to read the various transcriptions.
Note: [?] indicates that I could not transcribe a word (yet). Any comments or clarifications I make will also be enclosed in [ ] brackets.
18th February 1887 – Report from Sub. Inspect. Lawrence to Commissioner of Police sending several statements that he took down during a recent visit to Roebourne relating to the murder of Messrs Anketell and Burrup. He discusses James Lithgow, Frank Hornig and Roderick McRae
more to come …
The investigations into Franz Erdsmann, alias Frank Hornig, who was a suspect in the murders.
Coming soon …
The allegations of James Lithgow that he was witness to the murders and the police reports on such allegations.
4th January 1887 – The first statement made by James Lithgow whilst at Chidlows Well
6th January 1887 – The second statement made by James Lithgow whilst in Perth
6th January 1887 – Report by Serg. O’Connell commenting on the first Lithgow statement
12th January 1887 – The third statement made by James Lithgow
Allegations made by Thomas Sullivan as to the Roebourne murders and police reports
4th February 1887 – Report from Detective Constable John G. Baker.
George Stevens being employed as an undercover detective by the Police Force, his allegations that the Police Commissioner purposely stymied his investigations in Roebourne, and the ensuing stoush with the Commissioner insisting on receiving Stevens’ report before paying Stevens’ outstanding account.
11th – 19th July 1890 – Correspondence from Sub Inspector Back informing the Commissioner of Police that George Stevens (who was the solicitor representing Charles Warburton at the Roebourne murder trial) believes he can solve the murder case if sent to Roebourne as an undercover detective.
31st July – 3rd August 1890 – Telegrams regarding times of interview between Commissioner of Police and George Stevens. Also short document showing Stevens being sworn into the police department as a police constable and a receipt of payment.
11th October 1890 – Correspondence from Mr Hayward of the Union Bank to Commissioner of Police enquiring as to whether George Stevens is still in the employ of the police department and a telegram from Stevens to the Union Bank requesting £40 be wired to himself.
21st Oct 1890 – Correspondence from George Stevens castigating the Commissioner of Police for not letting him do his job properly and effectively “blowing his cover” whilst investigating the murders in Roebourne.
31st December 1890 – In correspondence George Stevens informs the Police Commissioner that his report is available under seal and will be released immediately upon payment of his oustanding account. Also, the reply to this correspondence from the Commissioner.
31st December 1890 – George Stevens long awaited report on his findings at Roebourne.