Practical Instruction for Detectives
A Complete Course in Secret Service Study By: Emmerson W. Manning
User: user12
Having been connected for many years with two of the largest and
most successful private detective agencies in this country, both as
an operator and as an official, and having been requested to outline
briefly and concisely the most modern and up-to-date methods employed
by leading detectives and private detective agencies of today, I
shall confine myself in these pages to facts and a few personal
experiences.
most successful private detective agencies in this country, both as
an operator and as an official, and having been requested to outline
briefly and concisely the most modern and up-to-date methods employed
by leading detectives and private detective agencies of today, I
shall confine myself in these pages to facts and a few personal
experiences.
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