Duffield Murder Inquiry: Man And Woman Stabbed To Death On New Year’s Day Identified

Paying tribute in a statement issued by police, the family of Hancock said: “The family are devastated at the loss of Helen, who was a lovely, beautiful, friendly, bubbly and social person.”

Griffiths’ family, also paying tribute, said: “Martin was a lovely dad, husband, son, brother and uncle, who had a passion for adventure, running and a love of animals.

“He enjoyed travelling the world, mountain climbing and spending time with his two children. He will be greatly missed.”

Both families have asked for privacy and are being supported by specialist officers.

Police remained at the address on Thursday, carrying out searches and door-to-door inquiries.

Chief superintendent Hayley Barnett, of Derbyshire Police, said: “The thoughts of everyone at Derbyshire Constabulary are with the family and friends of Mrs Hancock and Mr Griffiths.

“Our thoughts are also with the Duffield community, which is understandably shocked by this incident.

“You will see officers in the area throughout today as the investigation continues and I would urge you to speak to them about any concerns you may have.”.

The force has referred itself to the Independent Office for Police Conduct (IOPC) due to contact between Hancock and its officers before the incident.

An IOPC spokeswoman said: “We are investigating the circumstances of police contact with Helen Hancock prior to her death in Duffield on January 1.

“Our investigation follows a mandatory referral from Derbyshire Police.

“Due to the separate ongoing murder investigation, it would be inappropriate to comment further at this time.”