When Holmes is following Irene Adler with the package near the start of the movie, he's waylaid by some thugs escorting her and gets into a fight with them. The fight stops as some policemen (bobbies) go past, one of the thugs shouting out something that sounded like 'Palers' as a warning about the police's presence.
Is that what he shouted? I recall something about early london police force being named after the lord that started it, or nicknamed as such, was this Lord Pale? What did he shout, and what's the history on it?