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That's just Carmen SanDiego
Carmen got tired of stealing landmarks, settled down in London, and has become the most powerful detective ever.
According to the Wiki page, her backstory has been changed a few times, but for at least a while, the story was that she was a talented ex-detective, who had worked for the detective agency that the player works for.
https://en.wikipedia.org/wiki/Carmen_Sandiego_(character)
Starting with Carmen Sandiego's Great Chase Through Time (formerly Where in Time Is Carmen Sandiego?), it is explained that she was an ace detective for the ACME Detective Agency who found catching criminals too easy and decided that outsmarting ACME itself would make for greater challenges. This origin story was consistently maintained for over a decade, with one of the protagonists of Where in the World Is Carmen Sandiego? Treasures of Knowledge being Carmen's former partner.
Ah, so I got it backward. OP has a picture of Carmen Sandiego from back before she joined the criminals
I was just going to say Carmen Holmes.