Detectives have been given more time to question a man arrested in connection with the murder of police community support officer Julia James.
Ms James was found dead in Akholt Wood near her home in Snowdown, Kent, on 27 April.
The 53-year-old suffered serious head injuries while out walking her dog Toby, who was found unharmed by her side.
Kent Police arrested a man in his 20s from the Canterbury area on Friday evening.
The force has now been granted a 36-hour extension to detain the man in custody, which will last until Monday evening.
Forensics officers have been searching a property in Aylesham, Kent.
Police told Sky News this was "linked to enquiries being made in the Julia James murder investigation".
The National Crime Agency has said it is supporting Kent Police's investigation into Ms James's murder, adding that it is committed to "seeking justice for Julia".
Crimestoppers has offered a reward of up to £10,000 for information that leads to her killer being convicted.
Last week, police issued an image of Ms James in the clothes she was wearing before she was killed.
The picture showed her walking her Jack Russell while wearing a light blue waterproof coat, blue jeans and dark Wellington-style brown boots.
Police said it was the same clothing, apart from the gloves, which she wore on the day she died.
Anyone with information regarding Ms James's murder is asked to contact Kent Police on 0800 0514 526.
Watch: Julia James - Man sought by police after PCSO murder was seen in a 'very relevant location' to investigation, detectives say