Texas Penal Code - PENAL § 38.06. Escape

(1) under arrest for, lawfully detained for, charged with, or convicted of an offense;

(2) in custody pursuant to a lawful order of a court;

(3) detained in a secure detention facility, as that term is defined by Section 51.02, Family Code;  or

(4) in the custody of a juvenile probation officer for violating an order imposed by the juvenile court under Section 52.01, Family Code.

(1) is under arrest for, charged with, or convicted of a felony;

(2) is confined or lawfully detained in a secure correctional facility or law enforcement facility;  or

(3) is committed to or lawfully detained in a secure correctional facility, as defined by Section 51.02, Family Code, other than a halfway house, operated by or under contract with the Texas Juvenile Justice Department.

(1) causes serious bodily injury;  or

(2) uses or threatens to use a deadly weapon.