A probe of JPMorgan Chase & Co.'s hiring practices in China has uncovered red flags across Asia, including an internal spreadsheet that linked appointments to specific deals pursued by the bank, people with knowledge of the matter said.

The Justice Department has joined the Securities and Exchange Commission (SEC) in examining whether JPMorgan hired people so that their family members in government and elsewhere would steer business to the firm, possibly violating bribery laws, said one of the people, all of whom asked to not be named because the inquiry isn't public. The bank has opened an internal investigation that has flagged more than 200 hires for review, said two people with knowledge of the examination, results of which JPMorgan is sharing with regulators.

The scrutiny began in Hong Kong and has now expanded to countries across Asia, looking at interns as well as full-time workers, two people said. The employees include influential politicians' family members who worked in JPMorgan's investment bank, as well as relatives of asset-management clients, the people said. Wall Street firms have long enlisted people whose pedigree and connections can win business, a practice that doesn't necessarily violate the law.