He claims that the missing dog walker, who disappeared on January 27, is 'not in the river at all', and investigators should have found evidence by now if she were.
The forensics expert Mr Faulding told GBNews: 'The amount of searching that's gone on in this river, I would have thought she would have been found by now. Normally when a person drowns, if they are left a number of days they don't move very far.
'This is not a fast tidal river. So I would have expected her to be found by the police divers by now... It's as clear as that. And you know, none of this rings right to me. My belief is she's not in not in the river at all.'
Mr Faulding said that not enough factors added up in his opinion, suggesting that Ms Bulley's phone could have been left on the bench as a 'decoy'.
He continued: 'I personally think this phone could be a decoy.
'We dealt with a drowning a couple of years ago where a gentleman went into a river and Ripley, his dog, was screaming by the riverbank when we got there.
'When we arrived it was howling, and literally pointing exactly where he was. He stayed with his owner.
'The phone on the bench, I mean, you have to ask, normally someone would have a phone in their hand especially if they were walking around.'
The forensics worker said it 'feels odd' that no one spoke of the fact that Ms Bulley was not wearing clothes that would have absorbed water quickly, there were no marks at the scene and that not one person heard screams.
Additionally, he criticised the fact that the location has not remained cordoned off.
He said: 'People have been walking past the bench. There's no police tape up. This would normally be sealed off as a crime scene so potentially crime scene investigators can go in and see if there are any microfibres, evidence, slip marks down the bank etc and I don't believe that has actually happened here.'
Meanwhile, a friend of missing mother Nicola Bulley shared 11 key details about her disappearance - as police scour river after admitting they found 'no evidence' she slipped or fell into it.
Tilly Ann, a close friend of Nicola Bulley who has been missing since January 27, shared key details in a Facebook post following the 45-year-old's disappearance.