Misuse of Siren and Blue Lights

Request 1
How many known incidents have there been in the last 5yrs where staff members have used the siren and/or blue lights on an emergency vehicle when there was no legitimate reason for doing so

Request 2
How many of the known incidents lead to any sort of formal disciplinary action or informal action

Request 3
Please give me the first five examples in each year where a staff member has used the siren and blue lights where there was no reason for doing so?