Produce a Document and Power point presentation on the following blockchain use cases:

Audit, Banking, Money laundering and finance

Fully explain the use cases and note that you are not limited to the guiding principles below:

1. What is the current or previous state of operation of the industry in the above blockchain use cases.

2. How can the use of Blockchain enhance the current operations, "explain technicality of how Blockchain will be operating". Use diagrams for illustrations.

3. Elaborate on the examples of companies that have adopted the Blockchain Technology and how they use blockchain on their line of operation.

4. Pros and Cons of Blockchain Adoption in the above use cases