Tina said she first reported domestic violence in 2009 but GMP could not find any record of it.
She told Radio Manchester she was “sold for sex at the hands of my ex-husband” and lost a baby while pregnant due to the abuse she had suffered.
“He beat me black and blue until I did as I was told,” she said.
“He tried to suffocate me, drown me in water. He had me moving drugs up and down the UK for him. I have to deal with the psychological damage every day.”
In 2010, when Tina was arrested on suspicion of stealing jewellery, she said she again told police about being abused.
She said GMP officers called her “a liar” and told her it “wasn’t true”.
Tina said “not being believed was horrible”.
One of the officers has since retired while the other said they could only remember the theft investigation.
Recordings of interviews were destroyed in 2017, in line with standard police procedures.
In a letter seen by News, the GMP investigator said they had “no reason” to disbelieve either Tina or the officer.
As a result, the investigator had “arrived at an impasse”.