Lord Malmesbury considers that it may be useful that
Sir Edward Lytton's attention should be called to this
subject as the system carried on by these personshas has been
productive of much inconvenience at Callao.
Crimping, an indictable offence in Britain, involved removing sailors
from one ship and selling them to another. Crimps often plied sailors
with alcohol and delivered them, insensible or unconscious, on board a
ship an hour or two before it sailed. San Francisco was the most active
port for crimping in the nineteenth century, and crimps usually
charged about $30.00 per sailor. Source??