OPINION
In this appeal, Terry Harness raises two arguments: (1) that the police violated his Fourth Amendment rights when they entered his house without a warrant and found guns there and (2) that his 44-month sentence is unreasonable. Because the officers had probable cause to arrest Harness, because they permissibly followed Harness into his house after they had placed him in custody and because the officers observed the guns in plain view inside the house, the district court did not err in denying the suppression motion. And because the court properly calculated Harness’s sentencing guidelines range and permissibly applied the § 3553(a) factors to Harness in giving him a within-guidelines sentence, the district court did not impose an unreasonable sentence. We affirm.
I.
On Saturday, February 21, 2004, Russell Self, a deputy with the Grainger County Sheriffs Department, investigated a claim of sexual molestation made by Harness’s ex-wife, Sandra Osborn. Osborn told Self that Harness had propositioned her 10-year-old son while he and his 14-year-old brother were staying with their father during the previous weekend. Self interviewed Osborn and both sons. The younger son told Self that his naked father had approached him and asked him to perform a sex act. The older son, though unable to verify any details of the encounter because he had been asleep, corroborated that the encounter could have occurred on the date and at the time and place that his younger brother said it did. Osborn also informed Self that Harness had a prior conviction for sexual battery. After speaking with Osborn and the two boys, Self and his partner, Deputy Sheriff Barnard, verified Harness’s prior conviction for sexual battery with the police dispatcher, though they were unable to locate Harness’s name on a sex-offender internet website.
*754 The deputies drove to Harness’s house. As they entered his driveway, Harness came out of the house and stood on his front porch with his hands in his pockets. The officers instructed Harness to leave his hands in his pockets, patted him down for weapons and handcuffed him. They advised Harness of his rights, told him about his son’s allegation and asked why he did not appear on the sex-offender registry. Harness responded that he had filled out the sex-offender forms each month.
Self explained that he was arresting Harness for failing to register with the sex-offender registry and asked Harness if he “needed anything ... inside the house or [to] turn anything off’ before they drove him to the police station. JA 95. Harness responded that he needed his wallet, keys and cigarettes. When Harness entered the house to retrieve these items and turn off the stove in the kitchen, the deputies followed him. Once inside the house, the officers spotted two guns propped up against the wall in the hallway and two more in a gun rack in the bedroom. After seizing the guns, the officers took Harness to the police station.
On Monday morning, Self contacted the Tennessee Bureau of Investigation and determined that Harness had fulfilled his sex-offender registration requirements. (Having been convicted before 1997, Harness, it turns out, was under no obligation to be listed on the public internet database.) Harness was charged in state court with attempted aggravated sexual battery, which the court later dismissed, and in federal court with being a felon in possession of a firearm.
In the federal case, Harness made a pretrial motion to suppress the guns found in his house. Adopting a magistrate’s report and recommendation, the district court rejected the motion, after which Harness conditionally pleaded guilty, reserving the right to raise his constitutional challenge on appeal. The district court sentenced him to 44 months in prison.
II.
Harness first argues that the officers did not have probable cause to arrest him on the porch. The existence of probable cause, quite familiarly, depends on “whether, at the moment the arrest was made, ... the facts and circumstances within [the officers’] knowledge and of which they had reasonably trustworthy information were sufficient to warrant a prudent man in believing that the [defendant] had committed or was committing an offense.”
Beck v. Ohio,
Gauged by these precedents, Self had probable cause to arrest Harness. He had spoken directly to the victim about the attempted sexual battery, and nothing about the allegation itself cast doubt on the victim’s reliability.
See Ahlers,
Harness complains that the officers did not interrogate him about the allegation and did not obtain independent, trustworthy evidence to support the allegations. But “once a police officer has sufficient probable cause to arrest, he need not investigate further.”
Klein,
Harness also complains that the deputies arrested him for violating Tennessee’s sex-offender-registration laws, not for attempted sexual battery. Noting that a registration violation is a misdemeanor under Tennessee law and noting that Tennessee law prohibits officers from making warrantless arrests for misdemeanors, Harness argues that his arrest necessarily was illegal. As the Supreme Court has explained, however, an arresting officer’s “subjective reason for making the arrest need not be the criminal offense as to which the known facts provide probable cause.”
Devenpeck v. Alford,
Even if the deputies had probable cause to arrest him, Harness argues that their warrantless entry into his house violated the Fourth Amendment. Supreme Court precedent, however, cuts the initial legs out from under this argument and other precedents remove any remaining support for this position. In
Washington v. Chrisman,
In rejecting Chrisman’s motion to suppress this evidence, the Court reasoned that “the officer had placed [the student] under lawful arrest, and therefore was authorized to accompany him to his room for the purpose of obtaining identification.”
Id.
at 6,
Our sister circuits have applied the
Chrisman
rule in a variety of contexts.
See United States v. DeBuse,
In the face of these precedents, the deputies plainly had authority to follow Harness into his house when he sought to retrieve his keys, wallet and cigarettes. At that point, the deputies had placed Harness under arrest and thus had every right “to remain literally at [his] elbow at all times,”
Chrisman,
Harness’s response that the police somehow “coerced” his consent to enter the house misses the point. The issue is not consent but the risks officers would incur by allowing an arrested criminal suspect to roam freely about his home: risks to officer safety, risks of the destruction of evidence, risks of escape — risks that officers must “presume[]” surround “[e]very arrest.”
Id.
at 7,
Nor does it make a difference that the officers, rather than Harness, initially asked whether Harness “needed anything ... inside the house.” JA 95. The officers did not compel him to enter his house. And while Harness may in retrospect have regretted his decision to re-enter the house, he does not claim that the decision was anyone else’s but his. “[increasing a suspect’s options” — here by providing an option that many suspects (without evidence of a crime in plain view inside the home) would welcome — “cannot harm him,” and “a suspect’s poor choice does not render unconstitutional an officer’s objectively reasonable offer.”
United States v. Garcia,
Harness, finally, argues that his sentence was unreasonable because the district court failed properly to consider the § 3553(a) factors in determining his sentence.
See United States v. Booker,
While we may invalidate a sentence as unreasonable if the district court fails to consider the § 3553(a) factors,
*757
United, States v. Richardson,
Harness argues that by referencing only “just punishment” and “adequate deterrence” specifically, the district court did not sufficiently consider the other § 3553(a) factors. But this argument is foreclosed by
United States v. Chandler,
where we held that an identical specific reference to these two § 3553(a) factors, and no others, sufficed to support a finding of reasonableness.
III.
For these reasons, we affirm.
