Efcc former boss claims how billion on new office

It seems like you're referring to a news article or a statement made by a former boss of the Economic and Financial Crimes Commission (EFCC), claiming that the agency spent a billion naira on a new office.

Can you please provide more context or information about the article or statement you're referring to? Who is the former boss, and what specific details did they provide about the alleged expenditure? I'd be happy to help you fact-check or provide more information on the matter.