1 "§ 3141. Release and detention authority generally
2 "(a) PENDING TRIAL.-A judicial officer who is author
3 ized to order the arrest of a person pursuant to section 3041
4 of this title shall order that an arrested person who is brought
5 before him be released or detained, pending judicial proceed
6 ings, pursuant to the provisions of this chapter.
7 "(b) PENDING SENTENCE OR ApPEAL.-A judicial oHi
8 cer of a court of original jurisdiction over an offense, or a
9 judicial officer of a Federal appellate court, shall order that,
10 pending imposition or execution of sentence, or pending
11 appeal of conviction or sentence, a person be released or de
12 tained pursuant to the provisions of this chapter.
13 "§ 3142. Release or detention of a defendant pending trial
14 "(a) IN GENERAL.-Upon the appearance before a judi
15 cial officer of a person charged with an offense, the judicial
16 officer shall issue an order that, pending trial, the person
17 be
18 "(1) released on his personal recognizance or upon
19 execution of an unsecured appearance bond, pursuant
20 to the provisions of subsection (b);
21 "(2) released on a condition or combination of
22 conditions pursuant to the provisions of subsection (c);
23 "(3) temporarily detained to permit revocation of
24 conditional release, deportation, or exclusion pursuant
25 to the provisions of subsection (d); or