Chinese authorities have granted temporary liberty to one of the 18 Crown Resorts employees detained a month ago in China after posting bail.

With the release of Chinese national Jiang Ling, a Shanghai-based administrative employee for Crown, on Thursday, many speculate that Chinese authorities have wrapped up its preliminary investigations and are now moving to formally arrest and then charge those remaining in custody.

The Sydney Morning Herald said Crown has confirmed that a “junior” Chinese employee had been freed on bail, but the casino operator has remained mum on the details. Crown likewise declined to comment on whether it expected any of its other staff to be released or charged in the coming days.

Jeff Sikkema, the American husband of Jiang, was also silent about the reported release of the Chinese national. The expatriate had earlier insisted that his wife’s responsibilities did not extend beyond organizing Australian visas for Crown’s Chinese customers and that she was not involved in any sales or marketing.