Christina Applegate’s Husband — DETAINED Over Alleged Pap Fight

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Christina Applegate“s rock star husband was detained by police in Studio City yesterday after allegedly roughing up a photog … but the Porno for Pyros bassist insists the pap crossed the line by taking photos of his child.

The video begins with rocker Martyn LeNoble being approached by police on a street corner in broad daylight — he was detained, and patted down.

LeNoble — who was not handcuffed and not arrested — then begins to tell his side of the story … insisting a paparazzo (not a our sources guy) tried shooting photos of his wife and 2-year-old daughter at a birthday party.

LeNoble says, “I went outside to talk to him and he got physical with me … he wouldn”t back off.”

At one point, LeNoble says the pap challenged him to a fight in a back alley — saying, “Let”s see what kind of man you are.”

Eventually, LeNoble was released and sent on his way without further incident … though it sounds like he may try to take legal action against the snapper.

Celebs are clearly drawing a line in the sand about kids and it”s creating a lot of issues, because there are some photographers that are not backing down.

As far as the pap is concerned, law enforcement tells us the guy isn”t pressing charges.