Yzaguirre v. County of Mono CA3

California Court of Appeal·Decided August 26, 2026·No. C103494·Unpublished

Opinion

Filed 8/26/26 Yzaguirre v. County of Mono CA3 NOT TO BE PUBLISHED

California Rules of Court, rule 8.1115(a), prohibits courts and parties from citing or relying on opinions not certified for publication or ordered published, except as specified by rule 8.1115(b). This opinion has not been certified for publication or ordered published for purposes of rule 8.1115.

IN THE COURT OF APPEAL OF THE STATE OF CALIFORNIA THIRD APPELLATE DISTRICT

(Mono)

REBECCA YZAGUIRRE, C103494 Plaintiff and Appellant, (Super. Ct. No. 24UCM134)

v.

COUNTY OF MONO, Defendant and Respondent.

On September 11, 2024, personnel of the Mono County Department of Animal Services (Animal Services), with assistance from the Mono County Sheriff’s Department, made a warrantless entry into a trailer and seized 11 cats and kittens (the cats) that Rebecca Yzaguirre kept there. The entry occurred in response to reports of possible animal cruelty or neglect by Yzaguirre. In an administrative proceeding requested by Yzaguirre, Animal Services cited Penal Code section 597.1 to support the validity of the search and seizure.1 The administrative hearing officer upheld the seizure and the trial court denied Yzaguirre’s petition for writ of mandate seeking to overturn the administrative decision.

1 Undesignated statutory references are to the Penal Code.

Appealing from the judgment denying her writ petition, Yzaguirre contends (1) the hearing officer failed to evaluate whether Animal Services personnel held a reasonable belief that “very prompt”2 action was required to protect the health or safety of each animal seized, and (2) the trial court erred because there were no exigent circumstances warranting immediate action and the warrantless seizure was not excused under her probation search condition.

We conclude (1) Yzaguirre did not preserve her first contention for appellate review, and (2) substantial evidence supports the finding that Animal Services personnel had reasonable grounds to believe very prompt action was necessary to protect the health or safety of the cats. We will affirm the judgment.

BACKGROUND

On August 14, 2024,3 Animal Services Officer Emily Hartman received a report that Yzaguirre kept cats in a locked trailer and there was a strong odor of cat urine coming from the trailer. The informant saw six cats in the trailer through a side window. She expressed concern that Yzaguirre might have up to 30 cats in the trailer.

On September 3, a veterinary hospital staff member contacted Animal Services Manager Brittany Pratt to voice concern about sick kittens in Yzaguirre’s care. The individual said Yzaguirre kept a dog in a car.

On September 6, a social worker called the Mammoth Lakes Police Department to report possible animal cruelty by Yzaguirre. The social worker stated that Yzaguirre might have 21 cats. Another social worker told police that on September 6 he saw too

2 Section 597.1 authorizes immediate seizure of an animal when an animal control officer has reasonable grounds to believe that “very prompt action” is required. The “very prompt action” standard has been held to be the equivalent of emergency or exigent circumstances. (Broden v. Marin Humane Society (1999) 70 Cal.App.4th 1212, 1220- 1221 (Broden).) 3 Subsequent dates refer to 2024 unless otherwise stated.

many cats running around Yzaguirre’s condominium for him to count and the smell of cat urine was unbearable. On September 9 or 10, Mammoth Lakes police officers searched Yzaguirre’s home but found no cats there.

At 3:45 p.m. on September 11, Mono County Sheriff’s Deputy Ricci Reigle, Animal Services Manager Brittany Pratt, and Animal Services Officers Emily Hartman and Kayleigh Aeschlimann went to a trailer located near a forest service trail to investigate the reports regarding Yzaguirre. We will refer to Pratt, Aeschlimann, and Hartman collectively as Animal Services personnel. Pratt, Officer Hartman, and Deputy Reigle saw a 25-gallon bag filled with cat feces and litter, animal crates, a sheet or blanket with urine and feces on it, and trash outside the trailer. Animal Services personnel and Deputy Reigle detected a strong smell of ammonia from cat urine coming from the trailer. Pratt described the smell as overpowering. They saw cats inside the trailer through a trailer window. Deputy Reigle estimated there were 15 to 20 cats. Officer Hartman saw many cats displaying signs of illness, such as ocular abnormalities and nasal discharge. Officer Aeschlimann saw cats with ocular problems and cats exhibiting signs of respiratory distress. Pratt saw that the trailer interior was filthy and lacked proper ventilation.

Animal Services personnel knocked on the trailer door, announced they were with Animal Services, and received no response. Yzaguirre subsequently arrived with her daughter. Pratt advised Yzaguirre that Animal Services was investigating complaints about the welfare of animals in Yzaguirre’s care. Deputy Reigle advised Yzaguirre that Mono County Sheriff’s Dispatch confirmed Yzaguirre was on informal probation with search terms. Although Yzaguirre disputed she was subject to a search condition, she unlocked the trailer door.

After entering the trailer, Officer Hartman saw 20 or more cats inside the trailer, most with signs of serious illness. Pratt thought many of the cats appeared extremely ill. Officer Aeschlimann saw cats showing signs of respiratory distress, and a kitten with

severe ocular problems that exhibited signs of an infection. The only medication Pratt saw in the trailer was a small vial of doxycycline. Yzaguirre said the cats were undergoing antibiotic treatment, but based on the severity of the symptoms, Officer Hartman believed Yzaguirre could not adequately care for the animals.

The smell of ammonia and feces inside the trailer was so strong it burned Officer Hartman’s eyes. Officer Hartman saw mucus, vomit, and other organic matter on a cat tree and other surfaces. Officer Aeschlimann saw litter boxes that had not been cleaned and cat urine on several surfaces, conditions she said indicated neglect. She said there was no ventilation in the trailer.

Animal Services personnel determined that immediate intervention was necessary as most of the cats were extremely ill and the conditions in the trailer were harmful to their health. Pratt concluded, based on what she saw, that Yzaguirre failed to provide adequate care for the cats resulting in severe suffering and endangerment, necessitating seizure.

When Animal Services personnel paused their activities to allow Yzaguirre and her daughter to say goodbye to the cats, Yzaguirre hid cats in cabinets and the trailer bathroom. Animal Services personnel took 11 cats that appeared to be neglected and needed medical attention. They did not seize cats that appeared healthy or that they could not catch. All of the seized cats, except for two, were sneezing. Most of them had some type of discharge.

The cats were taken to an animal shelter and examined by a veterinarian on September 17, the earliest appointment available. Six cats were transferred to a veterinary hospital. Those cats were diagnosed with severe infectious ailments, including mycoplasma, chlamydia, and calicivirus. Mycoplasma is a type of bacteria that can cause respiratory infections. In more severe cases, mycoplasma can cause pneumonia or conjunctivitis. Chlamydia affects a cat’s eyes and respiratory system, resulting in conjunctivitis, sneezing, and nasal discharge. Calicivirus is a virus that affects the

respiratory system and can result in sneezing, nasal discharge, fever, and severe respiratory distress. Mycoplasma, chlamydia and calicivirus are highly contagious. Pratt stated the conditions in the trailer – overcrowding, bad hygiene, and lack of proper ventilation – contributed to transmission of pathogens.

Yzaguirre requested an administrative hearing to challenge the seizure of the cats.

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