Monitoring
Article 19
1. Member States shall review the effectiveness of their systems to combat serious criminal offences by maintaining comprehensive statistics. 2. By 1 February 2020, the Commission shall establish a detailed programme for monitoring the outputs, results and impact of this Directive. That programme shall set out the means by which, and the intervals at which, the data and other necessary evidence will be collected. It shall specify the action to be taken by the Commission and by the Member States in collecting and analysing the data and other evidence. Member States shall provide the Commission with the data and other evidence necessary for the monitoring. 3. In any event, the statistics referred to in paragraph 1 shall include the following information: (a) the number of searches carried out by designated competent authorities in accordance with Article 4; (b) data measuring the volume of requests issued by each authority under this Directive, the follow-up given to those requests, the number of cases investigated, the number of persons prosecuted and the number of persons convicted for serious criminal offences, where such information is available; (c) data measuring the time it takes an authority to respond to a request after the receipt of the request; (d) if available, data measuring the cost of human or IT resources that are dedicated to domestic and cross-border requests falling under this Directive. 4. Member States shall organise the production and gathering of the statistics and shall transmit the statistics referred to in paragraph 3 to the Commission on an annual basis.