Ex-Wall Street cop to help new Cohen firm

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The hiring is part of a broader effort at the family office, which manages company head Steve Cohen's own money alongside that of certain employees and family members

Five months after a groundbreaking criminal settlement with the U.S. attorney for the Southern District of New York that turned it from a major hedge fund into a private family office, Point72 has hired a former prosecutor from that office to handle internal surveillance.

Point72's new hire, Vincent Tortorella, began work Tuesday, according to an internal memo issued by company President Tom Conheeney.

Tortorella's hiring, the memo states, is part of a broader effort at the family office, which manages company head Steve Cohen 's own money alongside that of certain employees and family members, to "heighten our emphasis on surveillance and to add someone with outstanding investigative skills, preferably honed in law enforcement, to lead this effort."

Read More Steve Cohen firm: New name, big money

Tortorella, who worked for the Justice Department in New York and in the criminal division of the headquarters in Washington, was most recently the head lawyer and head of research at the hedge fund Coatue Management.

In an unrelated development, Coatue's founder announced plans to return $2 billion to investors on Tuesday after sustaining 9 percent losses in the month of March.

-By CNBC's Kate Kelly

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