Thematic Bible: Fraud impossible in

and said, "Sir, we remember what that deceiver said while he was still alive: 'I will rise [from the dead] after three days.' Therefore, give the order to secure the grave site until the third day, so his disciples will not steal his body and then tell the people 'He has risen from the dead.' This last deception would be worse than the first one [i.e., the claim that Jesus rose from the dead would be worse than the claim that he was the Messiah]." Pilate said to them, "Take [a group of] guards [with you]; go and make the grave site as secure as you can." read more.
So, they went and secured the grave site, placing a [wax] seal on the stone, while the guards watched.