(a) Claims for property damage are allowed under the MPCECA only if the property involved was being used incident to service with the Department and:

(l) The damage or loss was not caused wholly or partly by the negligent or wrongful act or omission of the claimant, his or her agent, the members of his or her family, or his or her private employee (the standard to be applied is that of reasonable care under the circumstances); and

(2) The possession of the property lost or damaged and the quantity and the quality possessed is determined by the claimant's supervisor to have been reasonable, useful or proper under the circumstances; and

(3) The claim is substantiated by proper and convincing evidence.

(b) Claims otherwise allowable under this subpart shall not be disallowed solely because the claimant was not the legal owner of the property for which the claim is made.