The Labour PCC, who will be 65 in 2016, said that he had thought long and hard before deciding not to stand again.
He said: “It’s been a huge privilege to be Derbyshire’s first PCC and I have enjoyed it immensely.
“I would also like to think that, despite the government’s extremely challenging funding cuts, significant progress has been made which will benefit policing, community safety and victims of crime in the years to come.
“However, I’m aware that the workload for PCCs, which is already pretty full-on, is only likely to increase in the future. I’m 65 next year and I want to enjoy some time with my family who say they rarely see me these days!
“As one of the pioneer PCCs it’s been challenging, fascinating and incredibly fulfilling. We have been able to shape the development of the role and make a real difference to policing governance.
“I am grateful to all those who have made this possible including the Derbyshire residents who elected me to represent them, Chief Constable Mick Creedon and the entire Constabulary. Most importantly, this is not a job for a lone ranger and I have received great support from my Deputy Hardyal Dhindsa and from my team led by Chief Executive David Peet, who have all been tremendous and absolutely invaluable.
“There is still a lot to be achieved before May 2016 and I remain absolutely committed to the role. However, I felt it was fair to make my intentions clear at this early stage which will give the Labour Party the opportunity to seek an outstanding candidate for the next election.”