In a method and apparatus for making and inspecting pre-fastened articles, such as disposable training pants, having at least two generally flexible elements capable of connection with each other during initial assembly of the article, the elements are arranged in overlapping relationship with each other and connected together to define an engagement seam of the article. The article is arranged to define an interior space thereof whereby the interior space is bounded in part by the engagement seam. The elements are irradiated at the engagement seam by a radiation source within the interior space of the article and an image of the irradiated engagement seam is captured by an image capturing device. In one embodiment, the image capturing device is positioned within the interior space of the article and the radiation source is either within the interior space or exterior of the article.
