Over the course of several weeks, investigators from the Polícia Judiciária Militar took part in a course to train shooting instructors, thus giving them the skills to train other colleagues in this subject. They took part in several shooting ranges, using the various weapons available in the PJM's armoury, such as the Glock 19, the Mossberg 590 and the H&K MP7. They also had the opportunity to use weapons from the training organisation, such as the H&K MP5 and the FN SCAR-L. They also carried out shooting exercises at night in order to sharpen their skills.