Investigation follow-up The Anti-Fraud Office follows up its inquiries to find out whether the bodies investigated have applied the measures that were recommended. Follow-up actions include both a request for information from the authorities or entities concerned and evaluation of their reply, in order to establish that the measures adopted are coherent and sufficient. Article 13 f) of the Rules for Action and Internal Regulations of the Anti-Fraud Office of Catalonia establishes that the Prevention Directorate is responsible for proposing improvements in administrative procedures and practices in order to guarantee transparency and reduce opportunities for fraud, in compliance with that provided in the second section of Article 1.2 of the LOAC (Law on the Anti-Fraud Office of Catalonia). Investigations enable the detection and diagnosis of patterns of conduct and behaviour in the entities being investigated and their authorities and officials. The Anti-Fraud Office can then propose improvements in their procedures and practices, which make up the subjective area of its involvement. These proposals may be fruit of the information provided and evaluation of the results obtained during the investigative actions carried out in the follow-up phase, or of other indicators resulting from the exercise of advisory powers through policy advice. The follow-up phase could be defined as the link that connects the investigation to the preventive work of our institution. The synergy between these two functions enables the Office to receive feedback both on its prevention activities, highlighting risk areas and factors, as well as on its investigative function, proposing investigations in certain areas and the drawing up of recommendations, criteria and doctrine of a general nature that can be employed by investigators.