The Costegan Agenda

by Andysaurus

This story assumes that after Sullivan discovers the FBI file and phones Billy, Billy never dares to phone Sullivan back This plot would also apply if Sullivan never phoned Billy because he did not find the FBI file in Queenan's office. If anyone knows of a better method of phone tapping instead of copying the sim cards please let me know

12. Chapter 12

The next day, Billy had to be a little creative, but he managed to convince Maddy that he needed some decent after hour's company (which was true, except that Billy had been getting no after hour's company at all). Billy took some quality booze, and successfully managed to get Sullivan more of guard than he should have been. While Sullivan was at the toilet, Billy was able to take the risky opportunity to raid Sullivan's jacket and clone both his spare and his active sim cards using the device hidden in the bag of booze.

The next morning, trusted people in Surveillance cloned the cards again. Now both Surveillance and Billy's team could tap Sulivan's calls. One night the week after, during another difficult case of avoiding multiple tails, Costello and Sullivan gave them a breakthrough; the spare sim card did indeed have a number for Costello's phone, which tied in with some odd text messages and calls that Sullivan had made to his 'dad'; Sullivan's parents had left him in his grandmother's care a long time ago.

It was all over a few nights later. Billy had been able to suggest several possible pickup sites that Costello might be heading for, thus allowing for more effective tails to be set up. Dignam then caught Sullivan red-handed while texting Costello, and without Sullivan's aid, Costello blundered straight into an ambush. The next day Costello attempted to make a deal, but was told that Sullivan had already been arrested so if he wanted to deal he would need to supply the names of his other police informants, Barrigan being specifically mentioned. The day after, Costello's laywer drew up a deal which included shopping Sullivan, as well as Barrigan and several cops not in the SIU who were all duly arrested.

Billy finally had the satisfying job of comforting Maddy after she visited the SIU. She told him that she would have to move out of the plush apartment because of the cost. Billy offered to help out by letting her stay at his place, and was then told that his place would have to be large enough for Billy Costigan III of four months time. Now Billy could really rub salt into Sullivan's wounds.