pregnancy_spouse_suspicion_chance_effect

pregnancy_spouse_suspicion_chance_effect = {
	hidden_effect = { #Scopes mother and real_father exist
		save_scope_as = spouse
		random_list = {
			0 = { #Father is suspicious
				trigger = {
					accepts_adultery_without_penalty_trigger = no
				}

				#Base chance
				modifier = {
					add = husband_suspicion_base_value
					always = yes
				}
				#Increased chance of suspicion if it actually is a bastard
				modifier = {
					add = 50
					scope:real_father != scope:spouse
				}
				#Increase significantly if the mother has a known lover
				modifier = {
					add = 150
					scope:mother = {
						OR = {
							any_secret = { # Trigger for secret relations
								type = secret_lover
								is_known_by = scope:spouse
								trigger_if = {
									limit = {
										exists = secret_target
									}
									secret_target != scope:spouse
								}
							}
							any_relation = { # Trigger for public relations
								type = lover
								this != scope:spouse # No suspicion chance if their lover is us!
								NOT = { has_secret_relation_lover = scope:mother } # Not a secret relation (That's checked in the above step).
							}
						}
					}
				}
				#Increased chance of suspicion if the child is a bastard and the mother is not very smart
				modifier = {
					add = 10
					scope:real_father != scope:spouse
					scope:mother = {
						has_trait_rank = {
							trait = intellect_bad
							rank > 0
						}
					}
				}
				modifier = {
					add = 15
					scope:real_father != scope:spouse
					scope:mother = {
						has_trait_rank = {
							trait = intellect_bad
							rank > 1
						}
					}
				}
				modifier = {
					add = 20
					scope:real_father != scope:spouse
					scope:mother = {
						has_trait_rank = {
							trait = intellect_bad
							rank > 2
						}
					}
				}
				#Negative modifier if the mother is smart
				modifier = {
					add = -5
					scope:mother = {
						has_trait_rank = {
							trait = intellect_good
							rank > 0
						}
					}
				}
				modifier = {
					add = -10
					scope:mother = {
						has_trait_rank = {
							trait = intellect_good
							rank > 1
						}
					}

				}
				modifier = {
					add = -15
					scope:mother = {
						has_trait_rank = {
							trait = intellect_good
							rank > 2
						}
					}
				}
				#Bonuses for high intelligence if it is a bastard
				modifier = {
					add = 30
					scope:real_father != scope:spouse
					has_trait_rank = {
						trait = intellect_good
						rank > 0
					}
				}
				modifier = {
					add = 30
					scope:real_father != scope:spouse
					has_trait_rank = {
						trait = intellect_good
						rank > 1
					}
				}
				modifier = {

As written in game/common/scripted_effects/00_bastard_effects.txt.