Final answer:
Prisoners shall be visited, as necessary, to ascertain their condition and to care for their needs at a minimum frequency of twice a week.
Step-by-step explanation:
The minimum frequency for visiting prisoners to ascertain their condition and care for their needs is twice a week.
This ensures that prisoners' well-being is monitored regularly and any necessary support or assistance is provided in a timely manner.
The legal requirement for frequent visits to prisoners is based on the principle of upholding their rights and ensuring their well-being while incarcerated.