In Criminal Law. He who is not the chief actor in the perpe- tration of the offence, nor present at its performance, but is some way concerned therein, either before or after the fact com- mitted. An accessary before the fact is one who, being absent at the time of the crime com- mitted, yet procures, counsels, or com- mands another to commit it: 1 Hale, Pl. Cr. 615. With regard to those cases where the principal goes beyond the terms of the solicitation, the approved test is, "Was the event alleged to be the crime to which the accused is charged to be accessary, a prob- able effect of the act which he counselled?" 1 F. & F. Cr. Cas. 242; Rosc. Cr. Ev. 181. When the act is committed through the agency of a person who has no legal discre- tion or a will, as in the case of a child or an insane person, the incitor, though absent when the crime was committed, will be con- sidered, not an accessary, for none can be accessary to the acts of a madman, but a principal in the first degree; 1 Hale, Pl. Cr. 514; 12 Wheat. 469. But if the instrument is aware of the consequences of his act, he is a principal in the first degree, and the employer, if he is absent when the act is committed, is an accessary before the fact; 1 R. & R. Cr. Cas. 363; 1 Den. Cr. Cas. 37; 1 C. & Κ. 589; or if he is present, as a prin- cipal in the second degree; 1 Fost. Cr. Cas. 349; unless the instrument concur in the act merely for the purpose of detecting and punishing the employer, in which case he is considered as an innocent agent. An accessary after the fact is one who, knowing a felony to have been committed, receives, relieves, comforts, or assists the felon; 4 Bla. Com. 37. No one who is a principal can be an acces sary; but if acquitted as principal he may be indicted as an accessary after the fact; 14 R. I. 283. In certain crimes, there can be no acces- saries; all who are concerned are principals, whether they were present or absent at the time of their commission. These are treason, and all offences below the degree of felony; 4 Bla. Com. 35; Hawk. Pl. Cr. b. 2, c. 29, § 16; 1 Whart. Cr. L. § 223; 2 Den. Cr. Cas. 453; 5 Cox, Cr. Cas. 521; 2 Mood. Cr. Cas. 276; 8 Dana 28; 20 Miss. 58; 3 Gray 448; 14 Mo. 187; 18 Ark. 198; 4 J. J. Marsh. 182: 67 111. 587; 90 Ala. 583; 45 Fed. Rep. 851. Such is the English law; but in the United States it appears not to be determined as regards the cases of per- sons assisting traitors. Sergeant, Const. Law 382; 4 Cranch 472, 501; U. S. v. Fries, 3 Dall. 515. See 2 Wall. Jr. 134, 139; 16 Wall. 147; 12 Wall. 347. That there cannot be an accessary in cases of treason, see Davis, Cr. L. 38. Contra, 1 Whart. Cr. L. § 224. It is evident there can be no accessary when there is no principal; if a principal in a transaction be not liable under our laws, no one can be charged as a mere ac- cessary to him; 1 Woodb. & M. 221; 28 Tex. App. 526. But see 6 Ohio Cir. Ct. R. 331. Where two persons are indicted, one as principal and the other as aider or abettor, the latter may be convicted as principal, where the evidence shows he was the per- petrator of the deed; 92 Ky. 1. By the rules of the common law, an ac- cessary cannot be tried, without his con- sent, before the conviction of the principal; Fost. Cr. Cas. 360. This is altered by statute in most of the states. This rule is said to have been the outcome of strict medieval logic. The trial of the accused being by sacred or supernatural processes, it would be a shame to the law if the principal were acquitted after the accessary had been hanged. 2 Poll. & Maitl. 508. But an accessary to a felony committed by several, some of whom have been con- victed, may be tried as accessary to a felony committed by these last; but if he be in- dicted and tried as accessary to a felony committed by them all, and some of them have not been proceeded against; it is error; 7 S. & R. 491; 10 Pick. 484. If the principal is dead, the accessary cannot, by the common law, be tried at all; 16 Mass. 423. One indicted as an aider and abettor of the crime of murder may be placed on trial, convicted and sentenced for that offence, notwithstanding the principal offender had been tried previously, and convicted and sentenced for manslaughter only; 46 Ohio St. 457. See also Whart. Crim. Law: Desty, Crim. Law: Bishop, Crim. Law; Whart. Cr. Ev. ; Roscoe, Cr. Ev. ACCESSIO (Lat.). An increase or ad- dition; that which lies next to a thing, and is supplementary and necessary to the prin- cipal thing; that which arises or is pro- duced from the principal thing. Calvinus, Lex. A manner of acquiring the property in a thing which becomes united with that which a person already possesses. The doctrine of property arising from accessions is grounded on the rights of occupancy. It is said to be of six kinds in the Roman law. First. That which assigns to the owner of a thing its products, as the fruit of trees, the young of animals. Second. That which makes a man the owner of & thing which is made of ano