Oklahoma bill inspired by toddler’s fentanyl death seeks mandatory testing in child welfare cases statewide

A father’s campaign becomes prefiled legislation at the Capitol

A proposal informally known as “Leo’s Law,” prompted by the fentanyl-related death of a young Oklahoma child, has moved into the formal legislative process as House Bill 4421, authored on February 2, 2026. The measure is tied to advocacy by the child’s father, Jacob Towe, who has urged lawmakers to tighten child-welfare procedures when fentanyl exposure is suspected.

The measure is prefiled for the 2026 regular session and has received its first reading in the Oklahoma House. As of February 3, 2026, there are no recorded votes, committee reports or amendments posted for the bill.

What HB 4421 proposes

HB 4421 is written as a child-safety and abuse-and-neglect measure. The bill’s official title outlines its focus on drug screening practices used in child-welfare matters involving the Oklahoma Department of Human Services, and it includes provisions addressing procedures, court involvement, penalties and a dedicated fund tied to testing.

• Child welfare drug screening requirements, including explicit reference to fentanyl testing.
• Operational rules and roles for DHS and law enforcement in child-welfare contexts.
• Creation of a “Child Welfare Fentanyl Testing Revolving Fund,” including accountability mechanisms such as audits and reporting.
• Changes to child-endangerment-related provisions, including definitions and penalties, and a stated defense provision.

HB 4421 is titled as a child-welfare proposal focused on fentanyl testing, court processes, and the creation of a dedicated revolving fund for testing-related costs.

How the proposal fits Oklahoma’s broader fentanyl response

Oklahoma lawmakers and law enforcement agencies have increasingly emphasized fentanyl’s role in overdose deaths and criminal prosecutions. Federal cases in Oklahoma have resulted in lengthy prison sentences for fentanyl distribution, including cases involving counterfeit pills and cases in which fentanyl distribution was tied to a death.

The Legislature has also considered school-based fentanyl awareness requirements under a separate proposal known as “Rain’s Law,” which would integrate fentanyl prevention and drug-poisoning awareness into health instruction.

What happens next

HB 4421 is at an early stage. The next steps typically include committee assignment, hearings and potential amendments before it can advance to floor consideration. If the measure progresses, fiscal analysis and implementation details—particularly regarding testing procedures, funding, and required reporting—are expected to become central to legislative debate.

For families and agencies involved in child-welfare cases, the bill’s trajectory will determine whether fentanyl-specific screening becomes a standardized requirement in situations where exposure is suspected, and how Oklahoma would fund and oversee those changes.