Officers are encouraging youngsters to only trick or treat at houses they know, ideally with an adult supervising.
The Queen Visits Dorset
Hundreds of people braved the weather to welcome the Queen to the South West of England.
She and the Duke of Edinburgh arrived by Royal Train to begin a series of engagements in Dorset and Wiltshire as part of her Diamond Jubilee tour of the UK.
Following the wettest April on record, the rain continued into May as well-wishers patiently stood outside Sherborne Abbey to await the royal visitors.
However, minutes before they arrived, the showers eased off and the umbrellas disappeared among the crowd of several hundred people.
Schoolchildren waved flags and cheered loudly as the Queen and Philip drew up in a car following a short journey from Sherborne station.
On arrival at Sherborne Abbey, the Queen and Philip met primary schoolchildren at a Mad Hatter's Tea Party in a marquee on the lawn. The Queen was presented with a bouquet of flowers by eight-year-old Leah McGarry, who attends Abbey Primary School in Sherborne.
Leah, who was dressed as Alice from Alice In Wonderland, said afterwards:
"I feel really excited that I was chosen to hand over the flowers to the Queen."
The Queen then toured a food fair and met People's Millions award-winners, while the Duke went inside Sherborne Abbey and viewed an exhibition of local artisans.
The royal couple then made the short journey by car to the nearby Digby Memorial Hall where they attended a 1952 themed coffee morning with guests and staff from residential homes across Dorset.
After meeting people enjoying the party, they went outside and spoke to members of the public. They then returned to the station by car to travel to Salisbury on the Royal Train.
The Queen, Duke of Edinburgh, Prince of Wales, Duchess of Cornwall visit Poundbury in Dorset.
South Central Ambulance Service hopes it'll help save lives, of people suffering cardiac arrest.
As the evenings start getting darker, officers are urging riders to use lights and wear reflective clothing.
Recently Played Tracks
Deposit £10 to get a £40 Welcome Bonus - That's £50 to play bingo, slots and more!*
Over 50 tracks to make you feel-good. New album out now...
Find your local four day weather report here.
What's happening on the roads where you are?
Make Heart the soundtrack to your day and you could be a winner with great prizes up for grabs throughout the day.
Find out more about some of the companies advertising on Heart.
Get some great ideas on how to advertise your business on radio, online and on mobile.