§3425. Board make improvements--convict's labor. The board of commissioners shall decide what improvements shall be made in the penitentiary, whether the same shall be enlarged, or the erection or extension of the prison or prison walls, the erection of workshops and other buildings and improvements; Provided, That said commissioners shall not make any improvements that will require an expenditure of money in excess of appropriations made by the general assembly for that purpose; which improvements shall be made under the superintendence of the warden upon the plans furnished by the commissioners; and he shall employ such a number of convicts in making such improvements as said commissioners may deem advisable, and he shall employ the remainder of the convicts in such labor as may be most advantageous to the penitentiary; Provided, however, That he shall classify the convicts, and if it shall be more in the interest of the penitentiary to hire out the labor of the convicts, to be worked under the superintendence of the warden, he may hire out such labor with the consent of the commissioners.

§3438. Warden keep account of labor hired out. When the labor of any convict or convicts shall be hired out, the warden shall enter upon a book a memorandum of the contract, which memorandum shall show the number of convicts hired out, for how long, at what wages, the name of the convicts, and the name of the party to whom such labor is hired.

§3447. Unlawful to hire out convicts--proviso. It shall be unlawful for the state of Colorado, its officers or representatives, to hire out the persons now confined, or who may hereafter be confined, as convicts in any penitentiary or prison that now is or hereafter may be established in the state of Colorado for the confinement of persons convicted of crimes or misdemeanors, to perform labor or any kind or description whatsoever outside of the prison walls or grounds owned or leased by the state of Colorado in the vicinity of such penitentiary or prison; that such convicts shall not be hired out to perform labor of any description, for pay or gain of any description, nor shall their services be given free to any person or class, or association of persons, beyond the limits hereinbefore described, under penalty hereinafter provided; Provided, That said board of penitentiary commissioners shall not hire out any convict for the purpose of carrying on an industry that comes in competition with free labor in the state of Colorado; And, Provided further, That all labor shall be done under the supervision of the said board and the warden of the penitentiary.

§3448. Persons or corporations may not hire convicts--exception. It shall be unlawful for any person, or corporation, or association whatsoever, or any county, city or town within the state of Colorado, to hire or bring into the state to perform labor, any persons convicted of crimes or misdemeanors of any description whatsoever in any state or territory of the United States under penatly hereinafter provided. Provided, That nothing in this act shall be construed to apply to ex-convicts.

§3449. Material prepared by convict labor not to be imported by state. It shall be unlawful for the state, its officers or representatives, or any county, city or town or their officers or representatives, to knowingly bring into the state or cause to be brought into the state any material for use in the erection of, or repairing of any public building, the labor in preparing, which or any part of which has been performed by convicts.

§4174. All inmates kept constantly employed at labor--may be visited. All inmates in the state reformatory, except such as are confined in solitude for misconduct in the institution, shall be kept constantly employed at some labor at an average of not to exceed ten (10) hours per day, Sundays excepted, unless incapable of labor by reason of sickness or infirmity; and such inmates may at all times, except when employed at labor under the rules adopted by the commissioners, be visited by any religious teacher or pastor of their own choice or religious belief, subject to such reasonable general rules and regulations applying to all alike as may be adopted by the commissioners.

§4175. One cell for each. Whenever there shall be a sufficient number of cells in the institution, it shall be the duty of the warden to keep each inmate singly in a cell at night, and also during the day-time when unemployed, if he shall find it necessary.