The usual applies. I don't own anything NCIS related, nor do I lay claim to the 12 days of Christmas. Heck, I can't even remember the lyrics and I had to sing this when I was in choir. Of course we were all sad and had to have the lyrics. 

On the first day of Christmas,
my true love sent to me
An interrogation room.

On the second day of Christmas,
my true love sent to me
Two gun runners
And an interrogation room.

On the third day of Christmas,
my true love sent to me
Three cups of coffee,
Two gun runners
And an interrogation room.

On the fourth day of Christmas,
my true love sent to me

Four caff-pows,
Three cups of coffee,

Two gun runners

And an interrogation room.

On the fifth day of Christmas,
my true love sent to me

Five head slaps,
Four caff-pows,

Three cups of coffee,

Two gun runners

And an interrogation room.

On the sixth day of Christmas,
my true love sent to me

Six guns a drawn,

Five head slaps,

Four caff-pows,

Three cups of coffee,

Two gun runners

And an interrogation room.

On the seventh day of Christmas,
my true love sent to me
Seven teammates solving crimes,

Six guns a drawn,

Five head slaps,

Four caff-pows,

Three cups of coffee,

Two gun runners

And an interrogation room.

On the eighth day of Christmas,
my true love sent to me

Eight bags of evidence,

Seven teammates solving crimes,

Six guns a drawn,

Five head slaps,

Four caff-pows,

Three cups of coffee,

Two gun runners

And an interrogation room.

On the ninth day of Christmas,
my true love sent to me

Nine common criminals,

Eight bags of evidence,

Seven teammates solving crimes,

Six guns a drawn,

Five head slaps,

Four caff-pows,

Three cups of coffee,

Two gun runners

And an interrogation room.

On the tenth day of Christmas,
my true love sent to me
Ten dead bodies in autopsy,

Nine common criminals,

Eight bags of evidence,

Seven teammates solving crimes,

Six guns a drawn,

Five head slaps,

Four caff-pows,

Three cups of coffee,

Two gun runners

And an interrogation room.

On the eleventh day of Christmas,
my true love sent to me

Eleven severs hacked,

Ten dead bodies in autopsy,

Nine common criminals,

Eight bags of evidence,

Seven teammates solving crimes,

Six guns a drawn,

Five head slaps,

Four caff-pows,

Three cups of coffee,

Two gun runners

And an interrogation room.

On the twelfth day of Christmas,
my true love sent to me
Twelve criminals caught,

Eleven severs hacked,

Ten dead bodies in autopsy,

Nine common criminals,

Eight bags of evidence,

Seven teammates solving crimes,

Six guns a drawn,

Five head slaps,

Four caff-pows,

Three cups of coffee,

Two gun runners

And an interrogation room.