NOT RECOMMENDED FOR FULL-TEXT PUBLICATION
                              File Name: 12a1143n.06

                                             No. 12-5258
                                                                                              FILED
                             UNITED STATES COURT OF APPEALS                               Nov 05, 2012
                                  FOR THE SIXTH CIRCUIT                            DEBORAH S. HUNT, Clerk

FREDIANDO CONTRERAS,                                   )
                                                       )
        Petitioner-Appellant,                          )       ON APPEAL FROM THE UNITED
                                                       )       STATES DISTRICT COURT FOR
v.                                                     )       THE EASTERN DISTRICT OF
                                                       )       KENTUCKY
J. C. HOLLAND, Warden,                                 )
                                                       )
        Respondent-Appellee.                           )


        Before: MARTIN and WHITE, Circuit Judges; ECONOMUS, District Judge.*


        PER CURIAM. Frediando Contreras, a pro se federal prisoner, appeals a district court

judgment denying his petition for a writ of habeas corpus filed pursuant to 28 U.S.C. § 2241.

        In his section 2241 petition, Contreras claimed that his sentence of imprisonment was

improperly enhanced and that his attorney was ineffective for failing to properly challenge the

enhancement. The district court subsequently dismissed the petition. On appeal, Contreras reasserts
his enhancement claim and moves for leave to proceed in forma pauperis.

        The district court’s judgment is reviewed de novo. Rosales-Garcia v. Holland, 

,

400–01 (6th Cir. 2003) (en banc); Charles v. Chandler, 

, 755 (6th Cir. 1999). Contreras

did not raise his ineffective assistance of counsel claim in his brief before this Court. Therefore, this

claim is deemed abandoned and not reviewable on appeal. See Grace Cmty. Church v. Lenox Twp.,

, 618 n.1 (6th Cir. 2008).




        *
         The Honorable Peter C. Economus, United States Senior District Judge for the Northern
District of Ohio, sitting by designation.
                                            No. 12-5258
                                                -2-

       Habeas corpus relief under section 2241 is reserved for claims challenging the execution of

the sentence. Wright v. U.S. Bd. of Parole, 

, 77 (6th Cir. 1977). Contreras claims that

his sentence of imprisonment was improperly enhanced. The duration of Contreras’s sentence is not

the proper subject of a petition for habeas corpus relief under section 2241. See Capaldi v. Pontesso,

, 1123 (6th Cir. 1998).

       Under highly exceptional circumstances, a federal prisoner may challenge his conviction and

sentence under section 2241, instead of 28 U.S.C. § 2255, if he is able to establish that his remedy
under section 2255 is inadequate or ineffective to test the legality of his detention. See 28 U.S.C.

§ 2255(e); United States v. Peterman, 

, 461 (6th Cir. 2001). Contreras has failed to

make this showing.

       Contreras pleaded guilty to conspiracy to possess with the intent to distribute marijuana and

heroin. See 21 U.S.C. §§ 846, 841(a)(1). The district court sentenced him to 210 months of

imprisonment. On appeal, Contreras argued against a four-level sentencing increase, claiming that

he was not the real leader of the drug conspiracy and that he was just an employee. The Seventh

Circuit rejected this argument and affirmed Contreras’s conviction. United States v. Contreras, 301

F. App’x 545, 547 (7th Cir. 2008). Contreras subsequently filed a motion to vacate his sentence

under 28 U.S.C. § 2255, which the district court denied. Contreras v. United States, No. 09-cv-
1048, 

, at *5 (S.D. Ill. Dec. 3, 2010).

       Contreras’s enhancement is predicated upon events that transpired during trial or on direct

appeal. Consequently, it could have been–and repeatedly was–raised at trial, on direct appeal, or by

a motion to vacate his sentence. Therefore, Contreras has not met his burden of proving that his

remedy under section 2255 was inadequate or ineffective to test the legality of his detention. See

Martin v. Perez, 

, 803–04 (6th Cir. 2003); 

.

       We grant Contreras leave to proceed in forma pauperis and affirm the district court’s

judgment.