What is the number one lie in police work?

The number one lie in police work, according to Karen Kruger, Senior Assistant County Attorney in Bel Air, Maryland, is: “I can’t recall.”
“If you don’t remember something in an incident, that’s natural,” says Kruger, “but often times during internal affairs investigations an officer will remember every last detail about that day — what he had for breakfast, what uniform he was wearing, and everything else — except for that critical moment during an incident.”
Does that happen naturally? Absolutely. Does it also sometimes come down to a deception by omission? Yep.
There clearly hast to be a prohibition against acts of deception that constitute criminal conduct, intentional misuse of police authority, lies made for personal gain, repeated acts of deception (even if they’re minor) or dishonesty, as well as the deliberate failure to report the misconduct of another officer.
The session on lying was incredibly informative, but it seemed to raise as many questions as it answered. If you don’t know wherever the information you’re passing along is false, are you actually telling a lie? What about mixed-motive lies — those dishonest statements and deceptions made in the effort of pursuing the common good?
Plato said that lying may be acceptable if it is for the common good. Aristotle, Plato’s mentor, said that lying is never acceptable under any circumstance.


Link:
http://www.policeone.com/chiefs-sheriffs/articles/1951580-IACP-Digest-The-lying-police-officer/#