Can someone point me in the right direction on where to find this answer?

After discharging Brewster as his collection agent, Wayne hires Graham to collect his accounts. Graham, new to the collection business, is unaware of the proper procedure. He places the day's proceeds in his personal account. The next day, when Wayne demands the money, Graham cannot remember how much of the money in his account belongs to Wayne. What are Wayne's rights in this situation?

en.wikipedia.org/wiki/Legal_recourse