TUALATIN, Ore. – Officials in the Tigard-Tualatin School District revised their policy for student speech to ban offensive comments on social media or on their personal cell phones  during non-schools hours after a single tweet sparked controversy.

A student at Tualatin High School in February tweeted an image of the school’s website mocked up to look like “White Supremacist High” with the slogan “Home of the KKK,” Oregon Live reports.

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Subheads on the doctored image included “Lynching Highlights,” “Slave Auction,” “White Power,” and other racially charged language, as well as a banner alleging the site was hacked, according to the Portland Tribune.

The school’s website wasn’t hacked, but rather a student simply edited an image of the site and posted it to Twitter. That image was retweeted over 100 times, favorited by 200, and comments suggested some students thought it was funny.

The incident came at a time when the school’s Unity Club was preparing a survey on racism and bullying at the school, and the incident skewed results to appear like those issued had skyrocketed since the year prior, according to Oregon Live.

“In 2014, just 12.4 percent of Tualatin High School students polled in the Oregon Student Wellness Survey said they had experienced racism,” the news site reports. “But this year, nearly 42 percent of students who participated in a student-led survey said they’ve seen racism at Tualatin High School.”

The image, combined with the survey, sent school officials into a tizzy.

“The image was shocking and hatful and against everything we stand for as a school,” the district said in a March statement in the Portland Tribune. “We want all student and families, including those in our African-American community, to feel safe, included and respected in our schools, everyday.

“We share the disappointment of the students and families who were hurt by this incident.”

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Associate principal Greg Dinse said administrators used class time to talk about racism and took other actions to address the issue.

“It is our goal to turn this negative situation into a teachable moment for our school community. Over the coming days and weeks, we will continue to take a variety of actions in response to this event including engaging students in classroom discussions about racism,” he said.

Dinse told The Skanner that the single incident shows the district has real problems with racism.

“You see something like this happen and even though it might have been one student doing it as a joke, it really does send a loud reminder to us that we have a lot of work to do whether that is addressing the racial achievement gap or people making insensitive comments,” he said.

“There’s still a problem with racism in our society, we still need to actively address it — we can’t just think that the work is done because we’ve done a few workshops with teachers.”

So district officials hired a new Equity Compliance Officer to look at discrimination in the district, and the TTSD Board Monday night adopted a more restricted student speech policy that vastly extends the school system’s jurisdiction for student discipline.

The policy states students are entitled to express themselves, except for a long list of exceptions. The new exception added Monday is for “speech that is hateful, derogatory or offensive to others regarding race, religion, national origin, sex, marital status, age, sexual orientation or disability,” Oregon Live reports.

The student speech policy also now applies to any student communications on social media, or electronic devices like personal cell phones or computers “regardless of the location of the speech or the mode of communication.”

“Off-campus speech and/or speech that is communicated via social media or electronic devices such as a computer or cell phone may fall within the jurisdiction of the school if it creates a disruption to the school environment,” the new policy reads.

In other words, any student speech anywhere that offends anyone could result in disciplinary action.

Because one student sent an inappropriate Tweet.