Yes. For POLAC (Nigerian Police Academy) application, they usually require the JAMB Original Result Slip — the one with your passport photo printed on it — not just the regular JAMB result notification you can print for free.
The reason is:
The original slip is accepted officially for admission processing.
It helps verify your JAMB registration number, subject combinations, and score.
The free printout does not carry your passport photograph and is not valid for admission screening.
So yes, you will need the JAMB Original Result Slip (you can get it from the JAMB portal, usually ₦1,500 – ₦2,000).