What type of inspection was done on July 07, 2010, involving the employee named "Lisa Tillman"?
type of inspection refers to inspection_type; on July 07, 2010 refers to inspection_date = '2010-07-07'
SELECT DISTINCT T2.inspection_type FROM employee AS T1 INNER JOIN inspection AS T2 ON T1.employee_id = T2.employee_id WHERE T1.first_name = 'Lisa' AND T1.last_name = 'Tillman' AND T2.inspection_date = '2010-07-07'