Glitter has been refused entry to Thailand, despite a plea for medical treatment there. He failed to board a second London-bound flight departing on Wednesday morning.
Lt Gen Chatchawal Suksomchit, the chief of Thailand's immigration police, told the Associated Press news agency that Glitter was confined to the transit area at Bangkok's Suvarnabhumi International Airport.
"Officials concerned are working through the process of putting him on the plane to take him out of the country, but if he continues to refuse to leave then he will be confined in the [transit] area temporarily before being taken into a detention centre," he said.
If Glitter does return to the UK, he will be met at the airport by police and required to sign the sex offenders register.
He will then be subject to monitoring and will have to tell the police where he plans to live and if he plans to go abroad. He could also face an order prohibiting him from going near children or using the internet.
Home Secretary Jacqui Smith said on Tuesday it was her view that he should be given a Foreign Travel Order (FTO) banning him from overseas travel.
Ms Smith has also announced plans to tighten controls on the movements of paedophiles.
Proposed measures include increasing the length of time an FTO can apply from six months to up to five years and automatically confiscating the passport of anyone subject to an order.
At present, police are only allowed to rely on evidence from the previous six months about the risk an individual poses, but that time period would also be extended under the plans.
"I think these are sensible and proportional ways of toughening up what is already a very tough system. I think that's what we owe to children in this country and to children abroad," Ms Smith said.
The home secretary's announcement came after children's charity Ecpat UK accused the government of "turning a blind eye" to British sex tourists.
Jacqui Smith on tightening restrictions for child sex offenders
The charity said it was too easy for nationals convicted abroad to stay under the radar of British police upon their return.
Christine Beddoe, from Ecpat, told the BBC the new proposals were welcome, but must address existing problems around the enforcement of FTOs.
There are currently only five travel bans in place for sex offenders, compared to some 3,000 for known football hooligans.
"At the moment the Foreign Travel Orders that we have in place are not being used very much - the police say they're a bit unwieldy, there's too much administration," she said.
"It's all very well and good saying they've got to be tougher, but if police don't like using them at the moment then let's make that work much better."
Ms Beddoe said the plans appeared to be "reactionary" and needed to include much more than just restrictions on offenders' movements.
"The other call that we're making is to have stronger bilateral co-operation measures with other countries for joint investigations.
"To share our information more easily, more speedily, with foreign countries is actually, really, what's going to make the difference."
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