In the last known interview before his arrest on charges of being part of an insider trading ring, New Castle Funds partner Mark Kurland said he was confident that investors were committed to the hedge fund he led.

Now that commitment may be tested as the New York-based hedge fund manager deals with the fallout from the Galleon case, which was made using tip-offs and wire-taps and centres around Raj Rajaratnam, founder of hedge fund manager Galleon Management.