Provided always, that in Scotland, in every case in which any person or persons shall be found guilty before the court of justiciary, of composing, printing, or publishing any blasphemous or seditious libel, or where sentence of fugitation shall have been pronounced against any person or persons, in consequence of their failing to appear to answer to any indictment charging them with having composed, printed, or published any such libel, then and in either of such cases it shall and may be lawful for the said court to make an order for the seizure, carrying away, and detaining in safe custody all copies of the libel in the possession of any such person or persons, or in the possession of any other person or persons named in such order for his or their use, evidence upon oath having been previously given to the satisfaction of such court or judge, that a copy or copies of the said libel is or are in the possession of such other person for the use of the person against whom such verdict or judgment shall have been had as aforesaid; and every such order so made shall and may be carried into effect, in such and the same manner as any order made by the court of justiciary, or any circuit court of justiciary, may be carried into effect according to the law and practice of Scotland: Provided always, that in the event of any person or persons being reponed against any such sentence of fugitation, and being thereafter acquitted, all copies so seized shall be forthwith returned to the person or persons from whom the same shall have been so taken as aforesaid; and in all other cases the copies so seized shall be disposed of in such manner as the said court may direct.