Det Disadvantage Surgay searched for to understate the connection, which saw him and Ms Bell travel abroad to California, Dublin and Germany, and stated it had been #8220;innocent#8221; aside from a #8220;drunk fumble#8221; in early stages.
The panel ruled that both allegations of gross misconduct were proven.
Det Disadvantage Surgay, 42, unsuccessful to report the character from the relationship, which #8220;might have potentially compromised a significant analysis#8221;, the panel heard.
Surgay stated it had been a mostly innocent relationship.
Det Disadvantage Peter Surgay would be a family liaison officer following a murder of Clifford Collinge in Nottinghamshire in October 2011.
A officer who supported the household of the murder victim while getting cheating having a solicitor of among the accused continues to be sacked.