Juvenile court judges are asked to determine what is in the best interest of the child in every case they hear. As Judge Cindy S. Lederman writes, making these decisions without an awareness of the science of child development can be detrimental to the mental and physical well-being of the child. Yet until about a decade ago, court decisions were routinely made without taking into consideration the needs of toddlers and infants. The Miami Child Well-Being Court™ (MCWBC) program, a partnership of clinicians and judges, has brought science into the courtroom, making it integral to the decision-making process and working to ensure that the needs of the child are met.