Reporting Services :: MAX Function Query - Display Most Recent Information

I have a query where I am trying to display the most recent information about travelling method of customers using "t.collection_date". I am struggling to get MAX function working in the query.

SELECT  P.id, P.forename, P.surname, P.dob, c.postcode, l.code_des, MAX(t.collection_date)
FROM    People p,
                MOT_HIST t,
               lk_mode_of_travel l,
                corresp_address c

WHERE   p.ID = t.id (+)
AND       t.mode_of_travel = l.int_code (+)
AND       p.id = c.entity_id (+)