The Task Forces established under subsection (a) of this section shall be carried out under policies and procedures established by the Attorney General. The Attorney General may deputize State and local law enforcement officers and may cross-designate up to 100 Federal law enforcement officers, when necessary to undertake investigations pursuant to section
873
(a) of title
21 or offenses punishable by a term of imprisonment of 10 years or more under title 18. The task forces—