London Police Uniforms - Casebook: Jack the Ripper Forums
Taken from the City of London Police Orders book for Bishopsgate Police Station dated 21st May 1889. The web site is wrong. As Ive stated, City of London Beat Police did not have whistles in 1888. They were only just being considered in May 1889, many months after Eddowes murder. Author of Capturing Jack the Ripper.