In 2013, the country that impeached its Chief Justice was Sri Lanka.

Explanation:

The impeachment of the Chief Justice in Sri Lanka in 2013 was a significant event that drew international attention and raised concerns about the independence of the judiciary. Here is a detailed explanation of the events surrounding the impeachment:

Background:
- The Chief Justice of Sri Lanka at the time was Shirani Bandaranayake, who had been appointed to the position in 2011.
- In 2012, a parliamentary select committee was established to investigate allegations of financial irregularities against the Chief Justice. This move was seen by many as politically motivated and an attempt to remove her from office.

Impeachment Process:
- The impeachment process against Chief Justice Bandaranayake began in late 2012 and continued into 2013.
- The parliamentary select committee found her guilty of three charges, including non-declaration of assets and conflict of interest.
- The impeachment motion was passed in parliament with a majority vote, leading to her removal from office.

Controversies and Concerns:
- The impeachment process faced criticism both domestically and internationally.
- Many argued that the proceedings did not adhere to due process and fair trial standards.
- The move was seen as an attack on the independence of the judiciary and a threat to the rule of law in Sri Lanka.
- Several international organizations, including the United Nations and Commonwealth, expressed concern about the impeachment and its implications.

Aftermath:
- Following her removal, Bandaranayake challenged the impeachment in court, and the Supreme Court of Sri Lanka ruled that the impeachment process was unconstitutional and nullified the decision.
- However, the government did not reinstate her, and she eventually resigned from her position.

Conclusion:
The impeachment of the Chief Justice in Sri Lanka in 2013 was a controversial and politically charged event. It raised concerns about the independence of the judiciary and sparked international criticism. Despite the Supreme Court's ruling, the Chief Justice was not reinstated, leading to further questions about the state of democracy and the rule of law in Sri Lanka.