An undercover police officer has been jailed for supplying weapons to a drug dealer after he became addicted to heroin.
Robert Carroll was sentenced to 14 months after a CS Gas canister and a baton, which had been issued to him by Greater Manchester Police, were found in the home of drug dealer.
Manchester Crown Court was told Carroll, 40, had been part of GMP's Sigma Unit, which works undercover to root out drug dealers.
During operations, the court heard, the lines between his real life and that of his undercover alter ego, 'Lee Taylor' became dangerously blurred as he began to smoke heroin every day.
The former officer, who was sacked earlier this year, claimed GMP 'failed' him by not protecting him from the risk of addiction or supporting him through his problems.
The force has denied the accusations and says there is evidence he was using drugs prior to his involvement in undercover operations.
Carroll, who lived in West Yorkshire, says he has now beaten his addiction.
He pleaded guilty to misconduct in a public office and theft.
Passing sentence, Judge Martin Steiger QC said: "I fully accept that the defendant became addicted through his police service and he is to be commended on the efforts he made in the interests of law and order.
"But where police officers suffer because of their duties, it is incumbent on them to obtain help.
"He did not do so, he did the very opposite."
After the hearing, Dawn Copley , Assistant Chief Constable of GMP, said: "Whatever personal mitigation Carroll may have, it is not an excuse for such a wanton abuse of his position as a police officer.
"When someone becomes a police officer, they take an oath to protect the public and quite clearly, Carroll failed in that public duty.
“Carroll’s drug addiction significantly clouded his judgement, so much so that he passed a prohibited weapon to a drug dealer in exchange for drugs."