Rapist Metropolitan Police officer David Carrick will serve at least 30 years behind bars for attacking a dozen women over a 17-year period.
Carrick, who was sacked from the London-based force following his conviction, was handed 36 life sentences with a minimum term of 32 years.
In a two-day sentencing hearing, Southwark Crown Court heard how the 48-year-old "monster" used his power and control to carry out a "catalogue of violent and brutal" sex attacks between 2003 and 2020.
His victims spoke of how they had "encountered evil", and the court was told Carrick sent one of his victims a photograph of himself with a work-issue gun, saying: "Remember I am the boss."
The court also heard how he told another woman he was the "safest person that she could be with and that he was a police officer" before taking her back to his nearby flat to rape her.
The sex predator previously admitted 49 charges, including 24 counts of rape and charges of sexual assault, controlling and coercive behaviour and false imprisonment.
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Deducting the number of days he had spent in custody from his minimum term, Mrs Justice Cheema-Grubb told the defendant: "These convictions represent a spectacular downfall for a man charged with upholding the law and empowered to do so even to the extent of being authorised to bear a firearm in the execution of his duty."
She added: "These women are not weak or ineffectual. They were victims of your criminal mindset.
"The malign influence of men like you in positions of power stands in the way of a revolution of women's dignity.
"It is remarkable that with one woman being driven to report an allegation against you, despite your position and power, others felt able to act.
"Even today, courage calls to courage everywhere and its voice cannot be denied."
Carrick, who joined the Met in 2001, became an armed officer with the Parliamentary and Diplomatic Protection Command in 2009
All of the crimes were carried out while serving with the force.
Carrick guarded sites including embassies and the UK's Houses of Parliament, and completed training courses, including one on domestic abuse in 2005.
He was sacked from the force last month after pleading guilty and being unmasked as one of Britain's most prolific sex offenders.
Home Secretary Suella Braverman said: "The crimes of David Carrick are a scar on our police, and it is only right that he now faces at least 30 years behind bars. I pay tribute to the brave women who have come forward to hold him to account for his vile abuse.
"It is vital we uncover how he was able to wear the uniform for so long."
