Ai Weiwei said that a number of police cars arrived at his studio and an employee filming the vehicles was roughed up.
Tax authorities imposed a $2.4 million fine on Ai Weiwei’s firm for tax evasion in 2011.
Supporters say the fine is politically motivated.
The Chinese authorities maintain that the firm, called Fake Cultural Development, owes them money and it must be paid back.
While Ai Weiwei is a designer for Fake Cultural Development, his wife is the legal representative of his company. She is believed to be attending the hearing in Beijing.
Ai Weiwei, 54, said on Twitter that the police had destroyed the camera of one of his employees. There were also photos showing injuries that his employee suffered after being roughed up by police.
The artist, a outspoken critic of the government, was detained for almost three months without charge last year. After he was released, he was accused of tax evasion and the fine imposed.
Ai Weiwei has said that the tax bill is pay-back for his activism. He challenged the fine in court, saying proper procedure was not followed.
A Beijing court then agreed to hear the case, a move that caught him by surprise.
Misleading allegations, rumours and outright lies about voting and fraud are flooding online spaces in…
At least 158 people have died in Spain's worst flooding disaster in generations. On October…
Google has been fined two undecillion (a two followed by 36 zeroes) roubles by a…
Embarking on a home remodel is an exciting journey, promising enhanced comfort, increased property value,…
The US presidential candidates continued to campaign across key swing states on October 20. Footage…
Elon Musk has said he will give away $1 million a day to a registered…