Jake Cummings, a 25-year-old Metropolitan Police officer, has been convicted of stalking and voyeurism, along with three counts of controlling and coercive behaviour.
The offenses, which began in 2019, involved three women in their twenties with whom Cummings had relationships.
He monitored his victims using tracking apps on their devices and continued to harass them via social media, WhatsApp, and text messages after the relationships ended. Cummings had been serving as a police officer since 2019, following his stint as a special constable with Dorset Police.
In addition to his convictions, Cummings faced two charges of rape, but the jury was unable to reach a verdict on those counts.
The Crown Prosecution Service has two weeks to decide whether to pursue another trial on these charges.
Cummings, who has been remanded in custody, is suspended from duty pending a misconduct hearing by the Metropolitan Police next week, with sentencing to follow.