In recent years law enforcement's war against crime has led to important ad
vancement in the training of investigators (specialized training), criminal
intelligence gathering and information storage (computerization). The prod
uction of specific knowledge and the concentration of criminal intelligence
may represent a source of criminal opportunities for police officers who a
re vulnerable to corruption. This paper focuses on criminal opportunities o
ffered to corruptible police officers, and more precisely, on the use of po
lice knowledge and criminal intelligence by corrupt police officers. Twelve
cases of police corruption in the province of Quebec throughout the past 3
0 years are examined. Findings show that some corrupt police officers do in
deed use their access to knowledge and criminal intelligence to commit corr
uption offenses. Such practices were found to be divided amongst cases in w
hich the acts involved a single officer and those which required extensions
into the criminal milieu.