Final answer:
The answer explains the historical collusion between vice activities and law enforcement in certain urban areas and mentions the lack of information about the source of the information regarding Janice Lee's involvement in a criminal enterprise.
Step-by-step explanation:
The source of the information about Janice Lee's involvement in a criminal enterprise was not provided in the given context. However, the information provided does highlight the historical collusion between vice activities, such as drug trafficking and prostitution, and law enforcement in certain urban areas. This type of collusion allowed for the profitable operation of illegal activities and the protection of those involved, as seen in the examples mentioned.