Can you please give memorandum on this case:

Case : Lucia Blanco and Chris O'Malley Lucia has been working as an organiser in the 'Collective Workers' Union for a couple of years. She has become aware of some safety concerns in some suburban depot locations. Each of the depots has a dedicated union representative, who works for the organisation, is a member of the union and acts as a conduit between the union and the workers, providing information about rights that may come from provisions in modern awards, enterprise agreements or workplace policies. Lucia receives a call from Chris O'Malley, a warehouse worker at the Bankston location, who is concerned about safety. New heavy lifting machinery has been introduced without any training sessions being provided to staff. Chris would ordinarily talk to Barry about this, but he has recently been made redundant. Lucia is very concerned as this sounds like a potential health and safety risk. She explains that she will visit the store later that afternoon and she leaves a voice message with Rod, the Store Manager. Lucia arrives at 3 pm wearing a high-vis vest and a hard hat. As she walks into the Warehouse, she is greeted by Rod who informs her that she is not allowed or authorised to be on site. Lucia and Chris have both contacted you about this incident.