18. Metropolitan Waterworks Sewerage System (MWSS) employee Japar was often assigned to do field work. Every time he does field work, he accomplishes a disbursement voucher for the amount that he needs and liquidates the voucher by submitting receipts to the MWSS cashier, Filomena, at the end of the day. One day, another MWSS employee, Jonas, desperately needed ₱230,000. Taking the same disbursement voucher that Japar habitually signs in the morning, Jonas filled it out with the amount that he needed. He then forged the signature of Japar before presenting it to Filomena, who in turn released the stated amount. After some time, Filomena noticed that the voucher remained unliquidated. When Filomena showed the voucher to Japar, the latter swiftly returned it, telling Filomena that the signature appearing in the voucher was not his. Filomena then realized that Jonas was the one who presented the voucher and took the money. When confronted, Jonas readily admitted to the act. He was eventually convicted of Malversation. Was the conviction of Jonas proper? Explain.