The Met has referred itself to the policing watchdog over the controversial stop-and-search of a Team GB sprinter in west London.
Bianca Williams and Ricardo dos Santos, a Portuguese 400m runner, were stopped in Maida Vale on Saturday.
Williams, 26, accused the Met of racially profiling her partner for driving a black Mercedes.
The Independent Office for Policing Conduct (IOPC) will investigate any potential wrongdoing.
Footage of the stop and search has been shared widely on social media.
In a statement the Met said the decision to refer to the IOPC had been taken “due to the complaint being recorded and the significant public interest”.
“Two reviews of the circumstances by the Met’s Directorate of Professional Standards have not identified misconduct for any officer involved,” the force added.
The Met had said officers were patrolling the area in which Ms Williams was stopped because of an increase in youth violence.
But Williams, the Commonwealth Games gold medallist, believes she and her partner were targeted because they are black and were driving a Mercedes.
“They [the officers] said there’s a lot of youth violence and stabbings in the area and that the car looked very suspicious,” she said on Monday.
“They see a black male driving a nice car, an all-black car, and they assume that he was involved in some sort of gang, drug, violence problem.”