The population that is mentally ill is arrested and prosecuted at a rate that is how many times that of the general population?

4

Explanation:

Based on the information provided within the question it can be said that this population is arrested and prosecuted at a rate four times higher than that of the general population. This is mainly due to the fact that not everyone is well informed on the various different mental illnesses that exist and, since these illnesses cause individuals to break the law more often than the general population then they are arrested and prosecuted at a much higher rate.