Defendant contends that, while the law arising upon the evidence in the case insofar as it relates to his plea of self-defense was declared and explained in the charge, the court failed to declare and explain the law arising upon the evidence given in the case as it relates to defendant’s right to defend his home from invasion by an intruder. We are compelled to agree.

The trial judge intimated in one portion of his charge that he would instruct the jury upon the defense of home, stating:

“. . . even though such officers be unlawfully upon the premises, if you should so find them to be, the occupants of the premises would have no right to injure or kill such officers except in self-defense or in the protection of their home (emphasis ours), and the court will hereafter instruct you as to what constitutes such self-defense in law.”

However, the following portion of the trial judge’s charge contains his only attempt to instruct the jury on the defense of home as an excuse for homicide:

“A killing would be excused entirely on the ground of self-defense, if, first, it appeared to the defendant and he believed it to be necessary to shoot Larry Bullock in order to save himself from death or great bodily harm, and second, *217the circumstances as they appeared to the defendant at the time were sufficient to create such a belief in the mind of a person of ordinary firmness. If defendant reasonably believed that a murderous assault was being made upon him in his own home, he was not required to retreat but could stand his ground and use whatever force he reasonably believed to be necessary to save himself from death or great bodily harm.”

While the instruction adequately sets out the law applicable to the defense by the defendant of his person, it does not adequately instruct as to the right of the defendant to protect his home from a forcible entry.

The decided cases in North Carolina have consistently distinguished between the right of a person to defend himself or other persons, and the right of a person to defend his home. The right of a person to defend his home from attack is a substantive right. State v. Spruill, 225 N.C. 356, 34 S.E. 2d 142 (1945). One may kill when necessary in defense of himself, his family, or his home, and he has the same right when not actually necessary, if he believes it to be so, and has a reasonable ground for the belief. State v. Gray, 162 N.C. 608, 77 S.E. 833 (1913).

“An attack on the house or its inmates may be resisted by taking life. The occupant of a house has a right to resist even to the death the entrance of persons attempting to force themselves into it against his will, when no action less than killing is sufficient to defend the house from entrance. A man’s house, however humble, is his castle, and his castle he is entitled to protect against invasion . . .” State v. Gray, supra at 613; Wharton Criminal Law, 9 Ed., Vol. 1, § 503.

“The guilt or innocence of the defendant does not depend upon the presence of a pistol in the hands of the deceased, . . . but in the existence of a reasonable apprehension that he or some member of his family was about to suffer great bodily harm, or of the reasonable belief that it was necessary to kill in order to prevent the violent and forceful entry of an intruder into his home.” (Emphasis ours.) State v. Gray, supra at page 612.

The evidence shows that the police officers had deliberately clothed themselves in such a manner as to conceal their true identity from observers. There is controversy indicated by the record as to whether the defendant heard Officer Bullock identify him*218self, or whether Officer Bullock did in fact identify himself before kicking in the door to the defendant’s apartment. That the door was forcibly opened and that the deceased entered the defendant’s apartment with a gun in his hand is not contested. The defendant testified that he did not know that the supposed intruders were police officers. The credibility of the evidence is not for us. From this evidence it may be inferred that the force used by defendant was not only in self-defense, but in defending his home from attack by another. Whether the defendant would prevail upon this defense would depend upon the reasonableness of his belief that it was necessary to kill to prevent a violent, forceful and unlawful entry of an intruder into his home. The reasonableness of the defendant’s belief is for the jury to decide. In making their determination, the jury would consider the circumstances as they are found from the evidence to have appeared to the defendant at the time of the shooting, including such relevant factors as the possession of a valid search warrant by the officers, whether the officers properly identified themselves and were refused admittance before forcing their entry, and whether the defendant knew that the intruders were police officers. Defendant was therefore entitled to have the evidence considered in the light of applicable principles of law even without a request by him. See, e.g., State v. Miller, 267 N.C. 409, 148 S.E. 2d 279 (1965); State v. Edwards, 28 N.C. App. 196, 220 S.E. 2d 158 (1975).

We do not deal here with the defendant’s other assignments of error as they are not likely to recur at retrial. For error in the trial court’s instructions to the jury, defendant is entitled to a new trial on the homicide charge.

Defendant’s brief states “[a]t the outset the defendant-appellant states unto the Court that by this appeal he appeals solely his conviction on second-degree murder.” Thus, defendant specifically abandoned his appeal as to the judgments entered in 10710, 10948, 10711, and 10947.

In 10716 (the homicide case), new trial.

In cases 10710, 10948, 10711, and 10947, no error.