delivered the opinion of the Court.
After making an elaborate summary of the evidence heard at the hearing of the claim filed by Félix Donato *666Burgos, the Industrial Commission made the following findings of fact:
“The evidence presented by claimant deserved our full credit, the same having established that he is a Justice of the Peace of Caguas; that on June 15, 1963, he was required by the duties of his employment imposed by the Court Administration to be available 24 hours a day to render services both for determining probable cause and fixing bail and for issuing warrants of arrest; that on the day of the occurrence, after having spent the morning and afternoon, in his office, he received a call from policeman Juan Denis to wait for him in his office for investigation of some cases he was going to submit, to which Judge Donato agreed, and while waiting for policeman Denis he went out to buy some meat for his personal consumption, intending always to return to the office and wait for the policeman.
“The evidence also established that claimant started for the meat market and when he arrived at a garage situated near his office, a car drove in at excessive speed. When the claimant as well as the marshal called this to the attention of the driver, he assumed a violent attitude, as a result of which the Justice of the Peace, in his functions as such, went over to the telephone to call the police and while waiting for the call to go through he was assaulted by the driver of the car, Raúl Cintron Maldonado. It was established that as a result of this assault claimant received medical treatment for about four months for several injuries received on his body.
“There is no question that the accident sustained by claimant Félix Donato Burgos occurred in the course and as a result of his employment as Justice of the Peace and while performing a function inherent therein. The duties of the Justice of the Peace includes the duty to maintain public peace, make investigations, order arrests and fix bail, and while he was performing one of these functions he was .assaulted by an individual who afterwards pleaded guilty and was charged with aggravated assault and battery. It- is, not significant that the claimant intended to purchase some articles for his personal use, since he always intended to return to his office and had not as yet performed the functions of that day.”
*667The Commission concluded that it was a labor accident and ordered that claimant be accorded the full protection provided by law.
As it may be observed, the elements which the Commission considered as controlling in reaching the conclusion of compensability were: (a) that among the duties of the injured party is the duty to maintain peace, make investigations, order arrests and fix bail; (b) that the fact that the employee had in mind a merely personal errand was immaterial, since he intended nonetheless to return to his office to discharge the functions of his employment; and (c) that on the day of the accident claimant was subject to a working period requiring him to be available 24 hours of the day.
Can it be said that in this case the three requirements to make an accident compensable are present, to wit: that the injury be the result of an act or function inherent in the employment, that it occur in the course and as a result of the employment? We believe that, notwithstanding the prism of excessive liberality with which it is sought to analyze the factual situation, and even disregarding certain uncontroverted fundamental facts on which the respondent court made no determinations,1 a contrary conclusion must be reached.
We note offhand that as a result of the enactment of Act No. 7 of May 7, 1962, which amended § 4 of the Workmen’s Accident Compensation Act, 11 L.P.R.A. § 5, the injury caused by the criminal act of a third person was eliminated as an accident excepted from the right to compensation.2
*668 Schneider, in his well-known work, Workmen’s Compensation Text, vol. 6, § 1542, p. 11, points out that “In determining whether an accident arose out of the employment, it is necessary to consider only this: (1) ‘Was the employee then engaged about his employer’s business and not merely pursuing his own business or pleasure; and (2) did the necessities of that employer’s business reasonably require that the employee be at the place of the accident at the time the accident occurred.’ ” Elaborating further, he adds that “if the work of the employee creates the necessity for travel, he is in the course of his employment, though he is serving at the same time some purpose of his own.” However, if the work does not necessitate the trip, and if the trip would not have gone forward except for the private purpose, any accident occurring in the course thereof could not be attributed to the employment. 7 Schneider, op. cit. at 422, § 1690. Mutatis mutandis, a trip which may have started out as a personal one may, by the addition of an employment element in the middle, become transformed into a mixed purpose trip, and if the accident occurs after the addition of the employment element, it is compensable. 1 Larson, Workmen’s Compensation Law 271, § 19.27.
Applying the principles enunciated to the present case, it is clear that the injured party went out of his office on a Saturday afternoon on a merely personal errand, such as to buy some groceries, and that on his way on such errand he was involved in an altercation which gave rise to the assault.3 He was not, indeed, making an investigation, *669nor performing functions of his employment such as issuing warrants of arrest and determining probable cause, as alleged by the Commission. That is why perhaps it is sought to interpolate the element of his duty “to maintain public order” which could point to an official function. This is made to depend on that “they decided to call the police” and went to the service station, and while the marshal was putting in the call Judge Donato, who was standing at the door of the establishment, was “victim of the aggression.” To call the police under circumstances such as those of the present case for the purpose of making an investigation in order to exact criminal liability for some facts in which the injured is one of the parties involved, was not a function of his employment;4 rather, it was the action of any citizen in his *670private capacity reporting the commission of a criminal act. It was not a risk to which the injured was exposed as judge, but rather a risk common to all citizens. Cf. Gallart, Mgr. v. Industrial Commission, 89 P.R.R. 570 (1968).
Lastly, the fact that Judge Donato, by administrative disposition of the Administrative Director of Courts, was to be on call time 24 hours of the day to perform certain functions of his office does not mean that any accident— no matter its source — can be attributed to his employment. It is necessary that there be some causal connection, even though incidental, with the employment, arising out of the discharge of the duties of the office. Cf. Bush v. Houston Fire & Casualty Ins. Co., 152 So.2d 377 (La. 1963); Sloss-Sheffield Steel & Iron Co. v. Harris, 117 So. 755 (Ala. 1928). This also disposes of the importance attributed' to the fact that Judge Donato intended to return to his office to attend to some matters to be submitted for his consideration.
The order of the Industrial Commission of May 28, 1964, will be set aside..
Mr. Chief Justice Negrón Fernández dissented.