1. No eyewitnesses. Privacy is an absolute requirement! Eyewitness testimony can destroy the predator's credibility when they try to exercise rule 4 (see below).
2. Destruction of any evidence! Facts have the uncomfortable habit of turning up when the predator least expects them. They must be very careful to leave no sign of their actions.
3. Imbalance of power. Effective predation requires that the recipient be fully aware of the consequences of resistance. Unless there is an imbalance of power there is no telling what sorts of baseless allegations the victim might make. Money may also be used, providing the (alleged) victim signs a legal agreement to remain silent.
4. Deny deny, deny. If the predator is careful to say it never happened, then what recourse does the recipient of their alleged attentions claim? When the predator has prestige, wealth, or position their powerful voice can overwhelm any feeble claims. The predator often falls back on their charm or sterling reputation when pressed.
5. Cast aspersions on the accuser. The predator's most effective defense is to raise doubts about an accusers honesty, motives, and/or life style, especially if they can suggest that something about these is "just not right." It does not matter if that something is relevant or not. Predators often suggest whatever ulterior motives they can imagine and proclaim them repeatedly and loudly.
6. Litigate. This is the atomic bomb of a predator's defense. Threatened legal action, whose defense would bankrupt the accuser, often works and, if that fails, they can follow through with the legal action and protract it to the limits of the accuser's financial resources.