Yes, you become complicit in a crime if you give a person the knowledge, tools, or skills necessary to commit a crime that the other person may not had or known.
depends on the crime
Identity theft is a crime in most jurisdictions. It can also constitute fraud.
Cannabis is already illegal. Making cannabis illegal increases crime rates because every time someone lights a joint, they commit a crime.
In the U.S. it depends on the crime.
Not exactly its not illegal to be racist either but if someone attacks someone else for prejudice reasons that's a hate crime which is definitely illegal.
Not unless the website your telling them about is illegal. If you recommend an illegal webstie to someone it encourages crime which is illegal.
No. A crime is something that is illegal. Robbery is an illegal crime.
In the US, it is illegal to possess marijuana. It does not matter it you eat it, smoke it, carry it around, or build a shrine to it on your mantle. Having it in your possession is a crime.
It is commonly called "double jeopardy" and is illegal.
A delinquent child can commit a crime that's illegal for someone over 18 (Ex: Murder) while an unruly juvenile commits a crime that's not illegal for someone over 18 (Ex: Smoking)
A crime is something bad and illegal that a person does intentionally ( or unintentionally). Stealing someone's property is a crime, for example.A criminal (a person who commits a crime) is to be punished for it by law.A Crime scene is the place where a crime was committed.
When someone encourages or helps another person to commit an illegal act or crime, it is called "aiding and abetting." And, yes, you can be prosecuted for it.