Gina Cortes is a detective in the 11th precinct and does not like Joan Watson.
Biography
Season Four
| Joan Watson and Sherlock question Fiona and her boss Phil Balsam after discovering that her code for operating a driverless car was used to kill two Ukrainian hitmen. They discover that the code was stolen and Fiona is incapable of lying. Sherlock later suspects her boss of being behind a drive-by killing purpetrated by the hitmen and with Fiona's help, Balsam's car is overtaken by Fiona and Holmes is able to get a confession from him. ("All My Exes Live in Essex")
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