the case of any reference in subsection (b) to an offense under this title, such reference shall include conduct that constitutes an offense under State or tribal law or under the Uniform Code of Military Justice, if such conduct would be an offense under this title if a circumstance giving rise to Federal jurisdiction had existed. . 3106. Grounds of inadmissibility and deportability for alien gang members (a) Definition of gang member Section 101(a) of the Immigration and Nationality Act ( 8 U.S.C. 1101(a) ) is amended by inserting after paragraph (52) the following: (53) (A) The term criminal gang means an ongoing group, club, organization, or association of 5 or more persons— (i) that has as one of its primary purposes the commission of 1 or more of the criminal offenses described in subparagraph (B) and the members of which engage, or have engaged within the past 5 years, in a continuing series of such offenses