Their equipment alone is reason for EquuSearch to become involved, IMO. They have been using Hi-tech equipment for underwater searches and ground searches long before OPD even thought of bringing it in after the firefighter's disappearance recently. Their expertise is missing persons.
OPD does not have the manpower, money, or the time to expend resources on this case further which is part of the problem. They have other cases, not just Jennifer's, to work on and her case is either cold (most people here would agree) or it is soon going to become another cold case file. After 18 months, it is past time to bring in outside help to find Jenn.
The grid search would begin where the case started...as EquuSearch has done in other cases. The grounds, the lakes, and the areas of construction where she could have been left which are now fully built need to be gone over again. If LE can give any reason to expand beyond this area, it can be done...but if there isn't...start over. (I also would want EquuSearch to go back over where LE's searched previously due to their equipment and not allow LE to refuse this request.)
Evidence (2 cell phones, wallet, CCs, etc.or a weapon) could be found as close as in the lake across from her apartment. Certainly, this would be a break in Jenn's case.
If there is a one in a million chance, EquuSearch could find Jennifer...I would absolutely take it. They do not do this for money or fame. They do this to bring missing daughters or sons home to their families. Jennifer deserves to come home and we have seen the track record for EquuSearch. They have surpassed every Law Enforcement office in the country for finding our missing, IMO.
As far as the black box is concerned, it can tell us a few things about the time Jennifer went missing: It records if seat belts were used, which would be an excellent clue as to the timing of her abduction because I doubt the perp would use his while abducting Jenn, it records speed at that very time, an indication he took side streets away from the apartment or could indicate how far he drove if he took the interstate/highway/causeway before he slowed or used the brakes, and some black boxes contain other information useful for other than traffic accidents.
It would be a question I would request from OPD to answer...if they had this black box read at the time they went over her car. If not, why not? Would there be any way to retrieve it from the person who has the vehicle now? If the person or company would cooperate, it would not interfere with the vehicle other than to allow time for the manufacturer or other entity to retrieve this information as it downloads into a specialized system. Not many police departments have the equipment (due to cost) to run this so I feel they did not obtain this information while the car was in their possession.