What kind of parent gets arrested for drugs?

Unfit ones. Parents that should not have kids in the first place-.
Hurting People. Many people are unfit to parent children. This doesn't keep them from having kids though and the damage can last generations. The impact of drug addiction on children and families is particularly devastating. Psychotherapy will aide in gaining insight into who our parents are and how they impact us. I strongly advise seeing a psychologist to gain insight and to establish a healthy identity.