Leave & Absence

The bereaved employee

An employee has taken three days family reponsibility leave on the death of a brother in a motor accident. She stays away for a further two weeks, and brings a medical certificate stating that she is il and unfir to work beacuse she is suffering from ‘bereavement’.
Would you accept this?  Must you give paid sick leave, and why, or why not?  The employee has been in employ for 18 months, and has a very poor record of attendance.