LONDON — Nazanin Zaghari-Ratcliffe, a British-Iranian lady who has been detained in Tehran since 2016, had her home arrest orders lifted as her sentence ended on Sunday, however her return to London remained unsure as she confronted new costs.

Over the previous 5 years, Ms. Zaghari-Ratcliffe’s case has deepened a diplomatic rift between Britain and Iran and drawn worldwide condemnation. However precisely what is going to occur subsequent remains to be unclear — a standard state of affairs throughout a lot of her time in custody, a interval stuffed with raised expectations and dashed hopes for her household and supporters.

Ms. Zaghari-Ratcliffe was convicted of plotting to overthrow the Iranian authorities, and had been detained in her mother and father’ residence in Tehran since final 12 months. On Sunday afternoon, her lawyer Hojjat Kermani advised the Iranian state information outlet IRNA that Ms. Zaghari-Ratcliffe had been free of home arrest however ordered to seem in court docket subsequent week on further costs.

Her ankle monitor was eliminated, however she remains to be with out her passport.

“It’s, in my opinion, clearly a sport of chess. She’s the pawn,” her husband, Richard Ratcliffe, mentioned in an interview final week. “And it’s not the start of that sport.”

Ms. Zaghari-Ratcliffe, 43, has denied the costs. Rights teams, Western officers and the United Nations have mentioned that her case is one in every of a number of situations wherein Iran has arbitrarily detained foreigners on baseless costs, many of them dual citizens like Ms. Zaghari-Ratcliffe.

Rights teams have accused Iran of making an attempt to normalize what they name hostage diplomacy with the West by arresting individuals on trumped-up costs after which utilizing them as political bargaining chips. Iran has denied these accusations and argued that its dealings with Iranian residents like Ms. Zaghari-Ratcliffe are a home matter.

The British overseas secretary, Dominic Raab, mentioned on Sunday that, whereas he welcomed the removing of Ms. Zaghari-Ratcliffe’s ankle tag, her “continued confinement is unacceptable.”

“She should be launched completely so she will return to her household within the U.Okay.,” Mr. Raab mentioned in a press release. “We are going to proceed to do all we will to attain this.”

Earlier interactions with the Iranian authorities had left Ms. Zaghari-Ratcliffe’s household getting ready for the worst earlier than the Sunday deadline, together with that the day may move with out her launch. Mr. Ratcliffe mentioned that he nervous she would “drift previous some extent that was the apparent resolution level, that was making us hope we might get her residence.”

The ordeal started in April 2016, when Ms. Zaghari-Ratcliffe was stopped at Tehran’s airport after visiting household in Iran with her daughter, Gabriella.

Ms. Zaghari-Ratcliffe, who was working as a mission supervisor for the Thomson Reuters Basis, was tried and finally jailed within the infamous Evin Jail in Tehran, the place she frolicked in solitary confinement and struggled with her mental and physical health.

The British authorities granted her diplomatic safety in 2019 in an attempt to win her freedom, and her switch to deal with arrest final March because the coronavirus pandemic swept Iran raised hopes that she can be granted clemency and permission to return to Britain.

However in September, Iran filed fresh charges against her and scheduled a new trial, although that was finally halted. The request for her to seem in court docket in Tehran this month is expounded to these costs, wherein she is accused of spreading propaganda in opposition to the Iranian authorities, her lawyer mentioned.

Her husband had earlier expressed hope that she is likely to be on a aircraft by Monday, however Sunday’s developments made that appear inconceivable.

“She’d been counting all the way down to this date for 18 months,” Mr. Ratcliffe mentioned. “There’s something deeply unsettling about going via that threshold, as a result of if this could occur, something may.”

In accordance with her husband, Iranian officers advised Ms. Zaghari-Ratcliffe that her detention would finish when Britain settled a four-decade-old debt of 400 million kilos, now value about $550 million, associated to a failed arms take care of the shah of Iran earlier than his overthrow in 1979.

Ms. Zaghari-Ratcliffe was detained simply earlier than a battle over the debt was set to start in a court docket in London. Iran has mentioned that the debt was not a consider her detainment.

Mr. Ratcliffe has been crucial of what he describes as a wait-and-see approach by British officials over his spouse’s standing, however he mentioned that he was extra hopeful after assembly with Mr. Raab, the overseas secretary final week.

A spokesman for the British Overseas Workplace mentioned in a press release that Mr. Raab and the division remained “in shut contact with Zaghari-Ratcliffe and her household, and proceed to offer our assist.” It criticized her detention “as diplomatic leverage.”

“We proceed to do every little thing we will to safe the discharge of arbitrarily detained twin British nationals in order that they are often reunited with their family members,” the assertion learn.

Kate Allen, the director of Amnesty Worldwide UK, known as the developments on Sunday “bittersweet” and urged the British Overseas workplace to take motion.

“In spite of everything Nazanin’s been via, this seems like one more instance of the calculated cruelty of the Iranian authorities,” Ms. Allen mentioned in a press release, including that the opportunity of a brand new trial was designed to delay Ms. Zaghari-Ratcliffe’s launch and exert stress.

“This gained’t be over till Nazanin has her passport and is on a flight heading residence to the U.Okay.,” Ms. Allen mentioned.

For now, Ms. Zaghari-Ratcliffe and her household are in a holding sample.

“It’s perpetual ambiguity,” Mr. Ratcliffe mentioned, citing the fixed questioning about “perhaps she’ll be residence, perhaps it’ll worsen, perhaps it’ll keep the identical.”