The law usually agrees with me, if that helps.
See I can not support the concept of 3rd party lability. I should only ever be responsible for my actions, not the actions of others, and I have no responsibility or obligation to stop any crime.
You don't have to ask someone if he wants to commit a crime, so that is not the problem. It is when someone explicitly asks for your help in commiting a crime and you think to yourself "yes I want to be complicit in this" that lands you in legal trouble.
If someone asks you for a handgun to kill someone you don't have to stop him, you just aren't allowed to aid him.
I really don't understand how you people seem to be under the impression that not going out of your way to help criminals takes more effort than not. I am more under the impression that you would pull the trigger on your on grandmother if it made you money, since it is not you but the blodloss that finally does her in - degrees of seperation and all that.
Instead most often these types of laws are used to prosecute people under a "should have known" scenario.
Examples of real situations of 3rd party liability that have been used to send people to prison
1. Jim takes a friend to a bank, the friend goes in and robs the bank. Jim though the friend was just withdrawing some money from his account but Jim is arrested and convicted of aiding his friend in the robbery
2. Jane does not have a license, a police officer attempts to stop Jane, Jane panics and runs from the police. The Police officer runs through a red light while in pursuit and kills a bystander, Jane is charged with murder.
if someone were to deliberately sell a pair of shoes to someone that they new would attempt to j-walk with their shoes, do you think they should be partially liable for the j-walking?
> no.