1. Any determination of whether a member is disabled under the provisions of section 86.257 or 86.263 shall consist of an investigation of the member’s physical and mental condition by the medical board of the police retirement system under the provisions of section 86.237 and an investigation by the board of trustees of the police retirement system of any other matter relevant to determine whether the member satisfies the applicable requirements of section 86.257 or 86.263. The board of trustees may authorize the use of staff of the police retirement system and other persons not employed by the police retirement system to assist in its investigation. The board of trustees of the police retirement system and the medical board of the police retirement system and any such physicians appointed by the medical board under the provisions of section 86.237 may communicate with each other as to matters relevant to determine whether the member satisfies the applicable requirements of section 86.257 or 86.263.

2. The board of trustees shall require each member who applies for disability benefits and any disability beneficiary to be reexamined under the provisions of section 86.257 or 86.263 to undergo medical examinations at places designated by the medical board and any physicians appointed by the medical board under the provisions of section 86.237.