One of the actions carried out by the Analysis Services Department is to promote and encourage the signing of agreements between Barcelona City Council and various authorities and organisations. That way, it disseminates and consolidates the Ethics and Good Governance Mailbox model as a paradigm for channelling communications, warnings or information which guarantees the confidentiality and anonymity of whistleblowers while establishing channels of collaboration for the sake of preventing fraud and corruption, protecting whistleblowers and promoting integrity and good governances.