Media captionMr Jammeh’s wife Dawn said her husband “could be up there for days”
“I’ve been asserting my innocence for six ended months and nothing has been done about it, they[ Tesco] have ignored me.
“Every day I’m more irritable. I’m merely alive when I come out here to Tesco demonstrating my innocence.
“So yesterday I decided it was the last straw for me.”
Mr Jammeh said he was able to come down if Tesco bosses apologise and “pay lost earnings”.
In one of his videos on Facebook, he apologised to shoppers.
“Sorry for some of you that are supposed to come here browsing in this storage, ” he said. “It’s inconvenient, sorry for that parties but it’s something I have to do.”
Image copyright Adam Jammeh/ Facebook Image caption Mr Jammeh apologised to buyers in one of his Facebook videos
His wife of 18 years, Dawn, is outside the supermarket corroborating him.
She told BBC Berkshire reporter Nick Johnson “he will not be coming down willingly” and they are prepared to “accept the consequences”.
“He’s been wrongfully accused of plagiarize, ” she said. “Tesco accused him, told his workplace and his workplace sacked him straight away.
“Police went through CCTV which made them 10 months to go through and said he was an innocent man and that it was somebody else.
“He’s had no apology off Tesco , no confession off TSS, and this is why he’s demonstrating now.”
Image caption Mr Jammeh began streaming his protest online at about 18:15 BST on Thursday
The store’s management team is also outside but refusing to comment.
A Tesco spokesperson said they have nothing further to lend.
A TSS spokesperson said: “We are aware of the incident implying a onetime work of Total Security Services and are assisting the police and Tesco in this matter.”
Thames Valley Police is yet to respond to claims of Mr Jammeh’s innocence.
Image caption Tesco said it was helping police with the matter
Image caption The security guard has placards outside the supermarket
The Tesco Extra West store was expelled just after 18:00 BST on Thursday after the police received reports concerning the “welfare of a man”.
Tesco said the company was still establishing the circumstances of the accident but guessed “the mens” has not been able to been instantly be applied by Tesco but was a member of security staff.
A statement said: “We’re aware of an incident at our Speaking West Extra store and are encouraging police with the matter.”
Image caption Thames Valley Police said policemen were called to reports of a “fear for welfare of a man”