Probation in criminal law is a period of supervision over an offender, ordered by a court instead of serving time in prison. In some jurisdictions, the term probation only applies to community sentences (alternatives to incarceration), such as suspended sentences.
When your landlord changes your door locks because you are behind on paying the rent, the landlord must give you advanced written notice of the proposed lock change AND a written notice at the time your locks are changed.
I am interested in any known precedents, not necessarily limited to California, for defending tenants changing the locks or key combinations without authorization in response to a history, even if it is a brief history, of burglary or unauthorized entry whether that be by the landlord or persons unknown.