Is thirty days' imprisonment a sentence?

Thirty days' imprisonment is not imprisonment. Prison disaster refers to unfair treatment, abuse or other forms of inhuman treatment experienced by a person in prison. Spending 30 days in a detention center can't be judged by the sentence alone, because it depends on personal experience and specific circumstances. If you are abused, forced to confess guilt or other unfair treatment during this period, you can think of it as imprisonment. But if you get legal treatment and protection, it's not jail.