Suspect of Opportunity Feat 10
Source Pathfinder Advanced Player's Guide
Frequency once per hour
Trigger A foe takes a hostile action against you in combat.
Sometimes something intrudes upon your case unexpectedly, such as an ambush sent to bring your investigation to a close. You've learned how to compartmentalize your main lead and pursue a new one for your current predicament.
You Pursue a Lead against the triggering foe, setting aside but not ending one of your currently active leads, if you have two leads. At the end of the combat encounter, you stop Pursuing the Lead against the triggering foe and return to the original lead, if you have one.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
InvestigatorThis indicates abilities from the investigator class.