police are reminding people when they should call 999 and in what situations they should ring the 101 non-emergency number.
The move comes two months after the force introduced the new 101 number.
On average, Derbyshire police receives 385 emergency calls a day but around one third of the calls made to 999 are not genuine emergencies.
Supt Kul Mahay is head of the force’s Contact Management department.
He said: “I would urge people to take a moment to think which number is the most suitable one to ring before calling the police.
“It should be clear as to what constitutes a real emergency situation.
“By ringing 999 when your call isn’t an emergency, you tie up call handlers whose time could be better spent dealing with situations where a life is in danger or a crime is in progress.”