老公有外遇可以通过哪些合法途径调查取证？

 ruguofaxian laogongchugui quemeiyoushizhixingdezhengju，neimejiuyaotongguohefadetujingjinxingdiaochaquzhengle。neimelaogongyouwaiyuyinggaizenmediaochaquzhengni？diaochaquzhengnaxiexingweibuhefa？naxieshuyuhefafanchouni？

laogongyouwaiyukeyitongguonaxiehefatujingdiaochaquzheng？

一、哪些出轨的证据具有法律效力？

 zhengminglaogongchuguidezhengjuyouhenduo，danbushisuoyoudezhengjudouyoufalvxiaolide。suoyiyinggaiyaojinkenengduodizhunbeizhengju，yibianyufaguanzonghepanduanlaogongshifouyouwaiyu。

1.nenggouxianshilaogongheqingrenqinmiguanxidezhaopian。

2.nenggouzhengminglaogongheqingrenyouhunwaiqingdeluyin，birulaogongzaitanhuazhongchengrenyuqingrenshihunwaiqingguanxideng。

3.nenggoubiaominglaogongyuqingrenzhijianshihunwaiqingguanxidegezhongluxiang。

 4.laogongyuqingrenzhijiandehunwaiqingduanxin，keyishilaogongheziji，huozheshilaogongqingrenyuzijishejidaohunwaiqingtanhuaneirongdeduanxindoukeyibaoliuxialaizuoweizhengju。

 5.youshihoulaogongheqingrentongguodianziyoujianlianxizhonghuishejidaohunwaiqingdeneirong，qiziyekeyijiangyoujianneirongzuoweilaogongchuguidezhengju。

6.laogongyuqingrenqinkouchengrenshihunwaiqingguanxideshumiancailiao。

7.zhoubianlinjuhuozhepengyoudezhengyanyekeyizuoweihunwaiqingdeyoulizhengju。

二、如何搜集老公婚外情的证据？

 yibanqingkuangxia，laogongfashenghunwaiqingweileyanrenermu，tatongchanghuibijiaoxiaoxinjinshenbuhuiqingyibeinifaxian，suoyiqizisoujichuguizhengjudenandubijiaoda。danshijiranlaogongqueshizuochuleduinibuzhongdexingwei，zongshiyouyixiexiansuoshikeyizhaodaode。

 soujilaogongchuguizhengjuyibanyouliangzhongtujing，yizhongshidangshirenzijishouji，lingyizhongshipinqingzhuanyedediaochajigoudiaocha。zheiliangzhongqudaogeyouyoulie，juticaiyongnayizhongyoudangshirengenjuzijidexuyaolaiding。danwuluncaiyongnazhongfangshi，douyaozhuyizhengjushoujiguochengdehefaxing。

三、什么样的出轨证据才能被法院采纳？

 1.chuguizhengjuyidingshikeguanzhenshide，birufanyingshuangfangbuzhengdangguanxidezhaopianyingdangshizhenshidesheyingbunengshitongguojishuhechengde，fouzejiubunengzuoweirendingshishideyiju。

 2.zhengjusuofanyingdeneirongyingdangyuyaozhengmingdeshishiyouguanlian。liruyifangyuzhengminglingyifangyouhunwaiqing，jiuyingdangtigongshuangfangfashenghunwaiqingdezhengju，ruzhuojianzaichuangdezhaopiandeng，erzhurutonghuajilu、duanxinjiludengyibanzhinengzhengmingshuangfangjinxingguolianxi，erbunengzhengminghunwaiqingdecunzai。

 3.qudezhengjudefangshibixushihefade，tongguofeifafangshiqudedezhengjubuhuibeifayuancaina。ruguozaizijijiazhongzhuazhubingpaishelaogongyuqingrenchuguidezhaopianhuoluxiang，zheijiushihefade。ruguochuangrulaogongqingrenzhuchuhuobinguanpaishedezhengjushibuhuibeifayuancainade，faneryoukenengyaochengdanqinquanzeren。

 ruguonihelaogongdeguanxiyijingpoliebudebulihunle，neimenikeyitongguoyishanghefadetujingqudiaochaquzheng。danshiruguonihaishebudezheiduanhunyindehua，keyiqiuzhuhunyinaiqingjigou，kankanshifounenggougaibianjumianwanhuilaogongdexin。