Defendant was charged in an information with possession of heroin. His motion to set aside the information was granted (Pen. Code, § 995) and the People appeal.
At the preliminary hearing Sergeant Hilliard of the Oakland Police Department and assigned to its narcotic detail testified that on August 27, 1964, at about 1 a.m. he and two other police officers went to a single-story duplex house at 5902 Holway Street, Oakland, to make a narcotics investigation. Some 15 minutes earlier, Hilliard had received a telephone call from an informant who stated that Sylvia Chandler and James Lucas were living at the Holway Street address; 1 that Miss Chandler was in possession of heroin; and that defendant was going to the house to see if he could get some of the heroin to take to San Francisco to sell.
At that time Sergeant Hilliard was already in possession of additional information concerning the above parties which he "had received from a second informant over the preceding three or four months. This information was to the effect that Lucas and Miss Chandler were in possession of and selling *294 heroin; that Lucas had been selling heroin for at least three or four months in a specified area; that on numerous occasions within the week preceding August 27 defendant had been observed with Lucas in that area; that the two men had been observed there together in a two-tone green Oldsmobile; and that Miss Chandler was in possession of narcotics that very day. Defendant, Lucas and Miss Chandler were all known to the witness as persons involved in the narcotics traffic. He had arrested defendant in the past “for investigation of possession of narcotics” and knew that defendant had been convicted of possession of narcotics paraphernalia.
When the officers arrived at the Holway Street premises on the night in question, Sergeant Hilliard saw two men in a green Oldsmobile parked in front of the house and noticed that it was the same car in which he had seen defendant on several prior occasions. Hilliard walked to the front of the house to verify the address and as he approached the east side he heard voices coming from the rear area which was lighted. He then saw Sylvia Chandler come out the back screen door, go to the garbage can and reenter the house.
Hilliard further testified that he thereupon went down to the corner to contact his two fellow officers and all three returned to the Chandler residence. All of them were in plain clothes. They walked to the rear of the house and entered onto the property by passing through an open gate. They walked along the side of the house to the back porch area 2 whereupon Officer Hilliard stepped up onto the first step, his fellow officers remaining on the sidewalk. This step was approximately one foot off the ground and while standing on it Hilliard could look through a screen door into the kitchen— the back door itself being wide open. Officer Hilliard’s purpose in going there was to conduct an investigation, although upon arrival the officers were as quiet as possible so as not to inform the occupants of the house that they were there. There were no bushes or hedges nearby, no roof over the porch, no way for the officers to conceal themselves: they were just “standing there,” the other two officers on the sidewalk and Hilliard upon the step. Anyone looking out the window or door would have seen them.
*295 After a few minutes Hilliard observed Miss Chandler enter the kitchen from the front area of the house, followed shortly thereafter by defendant. The latter walked over and stood next to Miss Chandler and told her of his desire to take some of the “stuff” with him to San Francisco where he was sure he could get rid of it. Miss Chandler replied, “Well, I don’t have that much stuff. He didn’t leave me very much this time.” Defendant then said “Well, while I am here I might as well try some of the stuff. ’ ’ Miss Chandler replied “Okay” and with this disappeared to the rear of the house, out of Hilliard’s view. Moments later she returned into view and walked over to defendant; he in turn got a glass from the cabinet, filled it with water and walked toward the rear of the house. For a brief time, then, defendant was out of Hilliard’s observation.
A moment later a light came on in a window immediately alongside Hilliard’s head. Looking toward it Hilliard could see that it was the bathroom and additionally could see defendant therein, standing by the wash basin. He watched defendant “then take a white paper, remove the contents and put it in a spoon, light a match under the spoon, remove an eyedropper and hypodermic needle from his sweater pocket, draw the contents off the spoon and inject it in his arm.” While defendant was in the process of doing this Hilliard turned around and told Officers Romero and Sawdon what he saw going on and that as soon as defendant finished and walked into the kitchen the officers would immediately enter the house and arrest him.
After defendant “had finished injecting a substance into his arm and had folded a small bindle of paper and placed it in his shirt pocket and then was putting something into his sweater pocket,” Hilliard glanced toward the kitchen and saw Miss Chandler start walking towards the screen door. The sergeant then opened the screen door, stepped into the kitchen, around Miss Chandler and went into the bathroom where he placed defendant under arrest for investigation of possession of heroin. He led defendant by the wrist into the kitchen where he instructed Officer Romero to search him while he held him by the wrist. This search turned up a small package in defendant’s shirt pocket, which package was later stipulated to contain heroin.
No consent was asked for nor obtained by Hilliard before entry into the house itself or into the bathroom, Nor had the *296 officers procured either an arrest warrant or a search warrant.
Exercising the privilege granted by Code of Civil Procedure section 1881 subdivision 5 3 the police refused to disclose the names of the two above-mentioned informants. As a result the magistrate at the preliminary hearing treated the information as being from an anonymous unreliable informant.
At the conclusion of voir dire examination of Sergeant Hilliard by defendant, defense counsel moved to strike all of the testimony of the witness pertaining to his observations of the occupants of the house and the conversations he heard upon the ground that such testimony was the “product of illegal police activity” violative of defendant’s rights under the Fourth Amendment. Defendant also objected to. the introduction of the heroin on the ground that it was the product of an illegal search and seizure. The motion was denied and the objection overruled. 4
The crucial question confronting us on this appeal is whether the acts of Sergeant Hilliard in entering the back yard of the premises and in looking from the porch step into the interior of the house constituted an illegal search in violation of defendant’s rights guaranteed by the Fourth Amendment.
In
Bielicki
v.
Superior Court
(1962)
The rule is settled in California that “looking through a window does not constitute an unreasonable search.’’
(People
v.
Martin
(1955)
Defendant contends that the above rule can have no application in the instant ease, arguing that since, under the holdings in
Bielicki
v.
Superior Court, supra,
Since, therefore, neither
Bielicki
nor
Britt
was governed by the rule declared in
Martin,
there can be no room here for the argument that the first two cases had a restrictive effect on such rule in situations involving toilets or bathrooms so as to afford such areas of a house special protection and thus immunity from the rule. It makes no difference under the rationale of the cases that an observation is made through a bathroom window rather than a frontroom window
(People
v.
Feeley, supra,
But defendant presses the argument further. While the rule declared in
Martin,
he says, may be applicable where the
*299
activities of the accused are in plain sight, it cannot be invoked where, as in the instant case, the officers have trespassed upon private property in order to make the critical observation. It is defendant’s position that
Martin
cannot be broadly interpreted so as to evolve a mechanical rule upholding such observations regardless of their circumstances and that the particular facts of the instant case establish an unlawful invasion of privacy. Defendant urges that the present case is governed by
California
v.
Hurst
(9th Cir. 1963)
It is worthy of note that while a few California cases seem to have given some consideration to the factor of trespass in determining the reasonableness of a search
(People
v.
Wright
(1957)
We proceed to examine briefly those cases cited
supra
which contain some reference to a possible trespass by investigating officers. In
People
v.
Wright, supra,
In
People
v.
Gonzales, supra,
Thus Andrews appears to hold that the rule of the Martin case is not rendered inapplicable by the observer’s trespass. However, the rest of the foregoing cases alluding to trespass articulate no clear rule and reach no conclusion as to effect of a trespass on evidence thus obtained. But it is noteworthy that among the group of cases cited supra which do not discuss the factor of trespass at all but, as we have said, seem to proceed on the assumption that a minor or technical trespass does not abrogate the Martin rule, there are several eases the facts of which are susceptible of a conclusion of trespass by the police. The sustaining of the legality of the search in *302 these cases, therefore, furnishes some indication that California courts have regarded the Martin rule as applicable even where such trespass has occurred. Both from what the California cases have said on the subject and what they have not said, we apprehend in them the underlying principle that looking through a window is not an unreasonable search and the search does not necessarily become unreasonable and illegal because the police, while not entering the house, may be on the premises when they make the observation.
Support is given this conclusion by the recent case of
People
v.
King, supra,
We now turn to an analysis of
California
v.
Hurst, supra,
It is to be noted that in
Hester
v.
United States, supra,
We reach
Hurst,
an appeal by California from an order granting relief in habeas corpus proceedings, instituted as post-conviction review of a judgment affirmed by the California District Court of Appeal, In that case the police
*304
received information from an anonymous informant that marijuana could be found under a specified dwelling house. Upon arrival, Officer Garrahan went to the front door, Officer Hanks to the rear of the building, and" Officer Grennan to the side of the house near a bathroom window. When the first officer knocked on the front door, the third, looking through a screened window into the bathroom, saw one of the occupants empty something from an ashtray into the toilet and flush it. At the same time, the officer in the rear, looking through a vent hole underneath a bedroom window, saw a large package (later determined to be marijuana) and reached inside and took possession of it. Stating that the observations made by the two officers were “indispensable links in the chain of circumstances furnishing probable cause” for the arrest of the occupant, the court held “that officer Grennan’s bathroom observations constituted an unlawful invasion of privacy to the same extent as occurred in
Brock
v.
United States,
We make several observations about
Hurst-.
In the first place, as we have already explained, the rationale of
Britt v. Superior Court, supra,
This brings us to
Polk
v.
United States, supra,
On remand, the District Court concluded that the officers’ action was not an unreasonable invasion of Polk’s privacy because of the following, among other, factors: the door to the yard was ajar and had neither a latch nor a bolt; the yard was visible through numerous cracks and holes in the fence and open to view from the upper stories of numerous surrounding buildings; the occupants of the lower flat enjoyed free use of the yard; neighborhood children used the yard to play in and freely used the passageway to the yard; garbage was collected from the yard. “The undisputed evidence . . . shows that insofar as defendant was concerned the rear yard and staircase were nothing more than a means of access to the back door of his flat.”
(United States
v.
Polk, supra,
It is manifest that the decisive factor in Polk was the degree of privacy which the defendant enjoyed in the area involved. It is significant that defendant herein does not take the position that a trespass upon the area surrounding one’s residence is automatically an invasion of privacy as was held in Brock and Hurst, upon which defendant relies, but rather, as defendant states in his brief, that the “crux of the matter is the nature and degree of the invasion of personal privacy, ’’ language more reminiscent of Polk,
*307
We therefore reach this final conclusion: That looking through a window does not become an unreasonable search merely because a police officer may be on defendant’s premises when he makes the observation; that the degree of privacy which defendant enjoyed in the place involved is an important factor in determining the reasonableness of the search; and that essentially the determination of its reasonableness must depend upon the facts and circumstances of the particular case.
(Bielicki
v.
Superior Court, supra,
Applying the foregoing criteria to the facts of the instant case, we observe that Sergeant Hilliard and his brother officers, having information as to possible narcotics violations, went to the Holway Street premises. Although, under the accepted premise heretofore explained, their information was not sufficient to constitute reasonable cause for an arrest or search, it did justify them in making an investigation.
(People
v.
Gonzales, supra,
We can find nothing unreasonable in their proceeding to the rear door which appears to have been a normal means of access to and egress from that part of the house. The gate was open and the rear door, actually on the side of the house, would probably be more public than a door at the back of the structure. The sidewalk from the gate to the side porch was further evidence that this area provided a normal access to the house. The structure was a duplex and although the record does not spell it out, it is a reasonable inference that other occupants of the building had use of the area around it. As stated previously, there were no bushes or hedges and no roof over the porch. It would appear that there was no substantial, if any, degree of privacy to the area. As the court stated in
State
v.
Smith
(1962)
We conclude that, in the light of all the circumstances, Sergeant Hilliard at the time he made the observa
*308
tions in question was not on premises constitutionally protected, that his looking through the door and window did not constitute an unreasonable search, and that his conduct was not an unlawful invasion of defendant’s privacy. Since he saw defendant committing the offense charged, he could lawfully arrest him without a warrant (Pen. Code § 836, subd. 1). The evidence obtained was the product of such lawful arrest. Such being the case, there was reasonable cause to hold defendant to answer.
(People
v.
Nagle
(1944)
The order is reversed.
Molinari, J., and Sims, J., concurred.
. Respondent’s petition for a hearing by the. Supreme Court was denied January 19, 1966. Peters, J., was of the opinion that the- petition should be granted.
Notes
Hilliard actually was given, only Miss Chandler’s telephone number from which he later traced her address through telephone company records.
There is no door actually located at the rear of the house. The ‘ ‘ back door is actually on the side of the house.” Nevertheless, since the parties at the preliminary hearing referred to it as the back door, likewise will we.
Code of Civil Procedure, section 1881, subdivision 5, provides: “A public officer cannot be examined as to communications made to him in official confidence, when the public interest would suffer by the disclosure. ’ ’
In making these rulings the magistrate observed that Sergeant Hilliard “made a simple trespass of the premises” in the course of an investigation and that the officer made an entry not because of the information he had received but because of what he saw and heard while looking through an open door and a window.
The same rule applies to windows of automobiles.
(People
v.
Hyde
(1958)
The trial judge appears to have based his decision to set aside the information at least partially on the Murst ease, stating “I have come to the conclusion that our late eases in effect have overruled People against Martin and the other cases, the old California eases which seemed to hold it was all right to look in windows and discover things like that, get in somebody’s back yard and look through a window and so forth,’’
The court in Burst quoted the following language from Broclc: “ ‘Whatever quibbles there may be as to where the curtilage begins and ends, clear it is that standing on a man’s premises and looking in his bedroom window is a violation of his “right to be let alone’’ as guaranteed by the Fourth Amendment.’ ’’
Martin
is relied upon in
People
v.
Andrews,
supra,
