A couple in Grand Bay was arrested Wednesday after an autopsy revealed the presence of methamphetamine in the urine of their child who died earlier this year.

The death of that six-month-old baby was the reason authorities were notified about 28-year-old Tracy Lane Howell and William Allen Knight, 35. According to the Mobile County Sheriff’s Office, the agency received a call from someone concerned about the child’s death in February.

When the autopsy report from their son’s death came back this month, it showed that methamphetamine and amphetamine were found in the baby’s system. As a result, Howell and Knight were taken into custody May 3 and charged with chemical endangerment of a child.

Howell and Knight also have another child, a three-year-old daughter, who has since been removed from their home in Grand Bay and placed in the custody of a family member by the Mobile County Department of Human Resources [DHR].

“Our detectives did a great job with this investigation and provided evidence to DHR so that we could remove and protect their three-year-old daughter, who was also living in the home” Mobile County Sheriff Sam Cochran said Wednesday. “This may also save the lives of the parents as well if they will seek the help that is available to them.”

While Knight has been previously charged with drug offenses in the area, the priors listed on Howell’s record at the Mobile County Metro Jail are disorderly conduct and public intoxication.

William Allen Knight, 35, and Tracy Lane Howell, 28, were charged with chemical endangerment after their deceased six-month-old son showed signs methamphetamine in his system.