The Prime Minister of Thailand, Yingluck Shinawatra, has appeared before the Constitutional Court in Bangkok to defend herself against allegations of abuse of power.

The complaint was filed by senators who said Shinawatra’s Pheu Thai party benefited from improperly transferring her national security chief, Thawil Pliensri, in 2011.

A composed Shinawatra defended herself in court on Tuesday saying a committee of ministers had made the decision to transfer the security chief and that she had no hand in the decision.

“I did not interfere in the decision process … which should be for the benefit of the land. I deny the allegation… I didn’t violate any laws, I didn’t receive any benefit from the appointment. I have never benefited from any transfer of civil servants,” Shinawatra told the court.

If found guilty she could be removed from office and banned from politics for five years.

The court is expected to decide on the case on Wednesday.

However, the prime minister’s supporters believe the top courts are biased against her and the case is an attempt by the elite to force her from office.

Many political watchers believe that there will be chaos, with large-scale protests if the court rules against her.

Shinawatra, who has led a caretaker administration with limited powers since dissolving parliament in December, also faces charges of negligence over a government rice subsidy scheme which critics say was rife with corruption.

Last week, Shinawatra’s government announced fresh polls on July 20, but the opposition has rejected the date.