Mr Fulford, speaking on Twitter late last night, said: “I got told the dress code earlier, I got told smart casual but my mom is coming off that plane and let me tell you I’m not casual.
“I’ve decided only a three piece suit would do her justice - used to tell me all the time to make sure I looked smart no matter what.
“So when she is carried off that aircraft she’ll be looking thinking ‘There’s my boy’.”
Ms Davey was killed alongside her partner Scott Chalkley, 42, from Derby, who was also fatally injured.
Tennis fans stand silently on court at Wimbledon
Rezgui - who was shot dead by police - is thought to have had a network of support and Tunisian authorities are still questioning eight people - seven men and a woman - suspected of having links to the massacre. Four others arrested by police have been rel;eased.
Government minister Kamel Jendoubi said the investigation “has allowed us to discover the network behind the operation in Sousse”.
According to Tunisian officials, the gunman trained at a Libyan jihadist camp at the same time as the two gunmen who attacked the Bardo museum in Tunis in March, killing 22 people.
Defence Secretary Michael Fallon vowed that those responsible for the massacre would be “tracked down”.
Scotland Yard said 160 officers were involved in interviewing hundreds of British tourists who either saw the attack in Sousse or were near-by when it happened on their return to the UK.
A total of 20 counter terror detectives and specialist forensic officers have been deployed to Tunisia to support the investigation there. The Met’s Counter Terrosim Comand is also leading the inquiry on behalf of the London coroner.
Assistant Commissioner Mark Rowley, the national policing lead for counter terrorism, said: “With the threat level to the UK from international terrorism remaining at severe, the UK police service is continually reviewing security to help ensure people and places are as safe as possible.”
Thomson and First Choice has said all 30 British people killed were its customers.
“The whole company would like to extend our deepest sympathies to the family and friends of those involved in this tragic event,” it added.
“Our main focus now is to ensure the families of the deceased and our customers who have been injured receive all possible support at this incredibly difficult time.”
Other victims killed in the attack include three Irish citizens, two Germans, one Belgian, one Portuguese and one Russian national.