The Independent Police Complaints Commission described DCI April Casburn's conviction as "a testament to the strenuous efforts being undertaken to identify police officers who may have taken corrupt payments".
IPCC Deputy Chairman Deborah Glass said today's prosecution "also sends a strong message that the public can not and will not tolerate corruption from police officers".
"The IPCC will continue to intrusively supervise Operation Elveden to ensure that the Metropolitan Police Service is robust in rooting out corruption in its ranks", Ms Glass added.
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The shadow chancellor appeared to differ from his leader, who had been initially reluctant to blame the Kremlin for the ex-spy attack.
The Foreign Secretary said the Kremlin's tit-for-tat expulsion of 23 British diplomats would only impact Vladimir Putin's compatriots.
Sunday will be bitterly cold with snow for most.