18 U.S.C. § 3062

A law enforcement officer, who is authorized to arrest for an offense committed in his presence, may arrest a person who is released pursuant to chapter 207 if the officer has reasonable grounds to believe that the person is violating, in his presence, a condition imposed on the person pursuant to section 3142(c)(1)(B)(iv), (v), (viii), (ix), or (xiii), or, if the violation involves a failure to remain in a specified institution as required, a condition imposed pursuant to section 3142(c)(1)(B)(x).