When you put a child in a safety seat the shoulder harness should always be over the shoulder and all the straps should be snug again the body?

When securing a child in a safety seat, the shoulder harness should be positioned over the child's shoulder and not behind their back or under their arms. All straps must be snug against the child's body to ensure maximum safety and prevent any movement during a crash. It's essential to check that the harness is properly adjusted to fit the child's size and weight for effective protection. Regularly inspecting the safety seat for proper installation and fit is also crucial.