Pursuant to Section 5-234 of this Code, a police officer who is a participant in a pension fund established under Article 5 of this Code may apply for transfer of his credits and creditable service accumulated under this Fund to such Article 5 fund. Such creditable service shall be transferred forthwith. Payment by this Fund to the Article 5 fund shall be made at the same time and shall consist of:
Participation in this Fund as to any credits transferred under this Section shall terminate on the date of transfer.
40 ILCS 5/12-127.5