But no matter what company it is, people from a company are currently taken away mostly because the company is suspected of committing a crime, most likely an economic crime.
If there is an economic crime, your cousin’s accounting status is likely to be implicated. Because one of the main hallmarks of this crime is the transaction of money. As a corporate accountant, it's unlikely that you don't know what you're doing. In other words, if the company's related actions are deemed to be criminal acts, then your cousin will be deemed an accomplice. A certain amount of criminal liability is required, which is also known as "imprisonment."
Because you did not give the key information in the question, the above analysis is only an inference.
Recommendations:
Understand the facts as soon as possible;
On the basis of understanding, start to collect and fix relevant evidence as much as possible, such as call records, WeChat records, emails Records etc.
Due to suspected criminal offenses, it is recommended to ask a professional criminal lawyer to intervene as soon as possible to safeguard legitimate rights and interests.