Is a probation officer justified in conducting a warrantless search of a probationer's home?

" 'It is settled that where probation officers or law enforcement officials are justified in conducting a warrantless search of a probationer's residence, they may search a residence reasonably believed to be the probationer's. [Citations.] [T]he question of whether police officers reasonably believe an address to be a probationer's residence is one of fact, and we are bound by the finding of the trial court, be it express or implied, if substantial evidence supports it.' " (People v. Downey (2011) 198 Cal.App.4th 652, 658

Page 35