Arizona authorities can begin checking the immigration status of criminal suspects, but for now they cannot arrest people for harboring people suspected of being in the United States illegally, a federal judge ruled today.

U.S. District Judge Susan Bolton today denied a request to issue a new injunction against the so-called show-me-your-papers provision of the state’s tough 2010 immigration law, which the U.S. Supreme Court upheld in June. Opponents argued the provision, known as Section 2B, would lead to unconstitutional racial profiling of Latinos.