HM Inspectorate of Constabulary (HMIC) said it will continue to monitor Northants Police and will carry out a full re-inspection of child protection arrangements in October to assess if the force has made improvements and if this can be sustained.
HM Inspector of Constabulary Zoe Billingham said:
Our inspection in January found that Northamptonshire Police was not giving sufficient priority to the protection of children in the county.
We found that child protection arrangements were wholly inadequate, and that children at risk within the county were not being properly protected by the police and other agencies. This is simply unacceptable.
Following our initial inspection, the force recognised changes needed to be made and our revisit in March found they had developed a plan tackle the issue.
The force has demonstrated it is taking child safeguarding seriously. But there is still much to do before it can offer assurance that children at risk are being adequately protected.
The most recent visit by HMIC last month found that the force had made "extensive changes", investing significantly in child protection and developing a comprehensive plan designed to ensure the required improvements are made.
However, HMIC concluded it's too early to say whether the force is doing enough to properly protect children at risk.
The inspection in January identified that the force was not allocating enough resources to child protection, and staff had received insufficient training in how to safeguard children.