For claiming deduction, you will also be required to deduct TDS (if applicable).
Further, the amount cannot at all be given to police in black so as to claim it as security expenses.
Further, they will not take the amount in white.
Payment of Protection Money to Rowdies & Police: In the another landmark judgment decided by Karnataka High Court that any payment to police or rowdies for getting protection from them is illegal and should not be allowed. Refer CIT v Neelavathi & Others 322 ITR 643 (2010).
undoubtebly this payment is not allowed under37(1). However ransom money paid to free director is allowed as per CIT VS khemchand motilal tobacco products(p) ltd(madhay pradesh)