HUDSONVILLE, MI -- Hudsonville District Court Judge Kenneth Post will be off the bench for 30 days, beginning later this month, after the state Supreme Court agreed that he acted improperly by jailing an attorney for contempt.

Post last month said he already was prepared for the suspension and admitted that he was rude in his conduct with attorney Scott Millard in December 2011.

The state Supreme Court ruling, issued today, affirms a recommendation from the state Judicial Tenure Commission for the 30-day suspension and a public censure.

Related: Hudsonville Judge Ken Post ready to serve 30-day suspension, attorney says

Post sent Millard to jail after he refused to let his client answer questions about past drug use. The client was charged with being a minor-in-possession of alcohol.

Millard believed that by allowing the questioning, it would violate his client's right not to incriminate himself.

The 2011 hearing involved some terse and pointed comments from Post.

Related: Circuit Court judge tosses out contempt of court charges against attorney

In today's Supreme Court ruling, justices ruled that he displayed misconduct in office, conduct that was prejudicial to the administration of justice, had a "failure to be aware that the judicial system is for the benefit of the litigant and the public, not the judiciary," and also a "failure to avoid a controversial manner or tone in addressing counsel," among other violations.

Post's unpaid suspension is expected to being on May 22.