A criminal organization is defined in the Criminal Code. Basically, it's an organization of three or more people that has as one of its main functions, purposes, or activities the commission of crimes for the purpose of enrichment. In other words, money-making crimes as opposed to terrorist crimes that are for religious or political purposes. On proving the existence of the organization, the easiest way to do it is by having someone from within the organization testify. If you can get that type of witness, an insider, to testify to say this is what the organization is called, and these are the members and the activities, then it's a lot easier. But in many cases we don't have a witness like that as they're difficult to get, and so we have to use circumstantial evidence such as wiretapping, physical surveillance, and transactions with police posing as agents making transactions. It can be very long and difficult. But those are the ways we prove that.
What was the second question?