The mum of a woman who died in a drug-related incident has called for 'further investigation' after saying that there are 'unanswered questions' over her daughter's death.

Kelly Louise Jones, 43, of Myton Walk, Hemlington, Middlesbrough, died on August 30 last year after she was found unresponsive at her house. 

At the time, the 43-year-old's death was the subject of a police investigation, which saw a police cordon on Myton Walk and crime scene investigators at the property for two days. 

But Cleveland Police soon ruled out third-party involvement and confirmed that there were "no suspicious circumstances" surrounding her death.

At an inquest held at Teesside Coroners' Court in Middlesbrough on Tuesday (July 30), it was noted that Kelly's death was the subject of a 'thorough' police investigation - which also saw Dr Jennifer Boulton, a Home Office pathologist for the North East, perform the post-mortem.

Dr Boulton, who gets involved in cases when third parties are involved or need to rule out third-party involvement, was present at the inquest on Tuesday. 

During her evidence, Dr Boulton said that there was nothing to suggest that anyone else was involved in Ms Jones' death. 

In a toxicology report, Dr Boulton said that they had found evidence that Ms Jones had high levels of a mix of drugs in her system - which had contributed to her death.

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At the hearing, it was also heard that the combination of drugs had contributed to making Ms Jones unconscious and in a 'coma-like' state, which also led to pneumonia - which is why she couldn't phone for an ambulance at the time. 

Concluding the inquest, the assistant coroner of Teesside and Hartlepool, Karin Welsh, noted Ms Jones' death as drug-related.

But Ms Jones' mum, Erica Jones, wants 'further investigation' over her daughter's death after saying that three people were allegedly in the property at the time of Kelly's death and claimed that 'unanswered questions' remain. 

However, responding to the mother, assistant coroner Welsh said that an inquest is a "fact-finding mission" and not something to apportion blame.