As the Head of Information Systems at Equity

Brokerage, you maintain the computer systems

which support all aspects of stock trading accounts

at Equity, including access for trading purposes. Your

firm is being sued by a customer who alleges trading

irregularities occurred on her account. When you

testify at trial as to the identity of the person who conducted

the transactions and the actions that affected

the status of the account, what kind of witness are

you, and what kind of evidence are you providing?