Presumably you've established a one-to-many relationship between your table containing the customer info (one side) and a table containing the incident records. The tables should be related by a primary key in the one side table (a value that is unique to each customer) and a matching value (foreign key) in each row in the incidents table relating to that customer.
If this is the case, the easiest way to display this information is using a subform to display the incidents for each customer, instead of using a button to open a separate form. To do this, create a second form containing the incident information and drag that form onto a blank area of your main form.
The open the subform properties after selecting the entire subform and make sure that the Child and Master linkings are set to your primary and foreign keys.
When set up properly, all the incidents for each customer will be display in the the subform. You can set the subform property to continuous forms to give you a subform that allows you to scroll thru all the records relating to the customer. - - - -
Bry