The cost to New Jersey taxpayers of former Gov. Chris Christie's legal response to the George Washington Bridge lane closing scandal back in 2013 has climbed to over $15 million.
That tab is expected to increase as appeals play out.
The new total reflects additional billing by data forensics firm Stroz Friedberg.
Records reviewed by The Associated Press show its charges have topped $4 million, including $700,000 last year and $60,000 this year.
Two former Christie aides were convicted in 2016 of fraud and other charges for causing traffic jams on the bridge to punish a mayor who wouldn't endorse the governor for re-election.
They are appealing.
The attorney general's office says Stroz Friedberg is continuing to maintain data.
Two other law firms also submitted bills.
AP wire services helped contribute to this report.