What would you do if you discovered there were accounting transactions that were suspicious or questionable?

"If during my work I discovered a practice that I found questionable, I would immediately voice my concern to the Tax Manager. It is possible that I could be misinterpreting the situation. If not, my manager would provide good counsel on next steps to resolve the situation. The most important thing is to be honest and ethical - two character traits that I am proud to say I possess."