(1) Any person who knowingly aids, abets, or assists another person to escape or attempt to escape from custody or confinement commits the offense of aiding escape.
(2) "Escape" is deemed to be a continuing activity commencing with the conception of the design to escape and continuing until the escapee is returned to custody or the attempt to escape is thwarted or abandoned.
(3) "Assist" includes any activity characterized as "rendering assistance" in section 18-8-105.
(4) Aiding escape is a class 2 felony if the person aided was in custody or confinement as a result of conviction of a class 1 or class 2 felony.
(5) Aiding escape is a class 3 felony if the person aided was in custody or confinement and charged with or held for any felony or convicted of any felony other than a class 1 or class 2 felony.
(6) Aiding escape is a class 1 misdemeanor if the person aided was in custody or confinement and charged with, held for, or convicted of a misdemeanor or a petty offense.